Tag Archives: San Francisco

October 19, 2012 · 12:10 pm

Don’t you worry that it’s not safe to ride a bike with your kids?

Not trying to kill each other

Before we had our son, people tried to explain what it was like to have kids. It was impossible. They said it was like having your heart walking around outside your body. It’s not like that for me.

When I think about my children, I think about falling in love. You fall in love, and everything is passion. It’s like being cast in your own personal opera. Everything your beloved does is beautiful. Every fight is world-ending. It seems like the feeling will never end. But it does end. You get used to one another, and life fades into normalcy. You fight about the dishes and the world doesn’t stop turning. You settle down.

My son has ridden the Golden Gate Park carrousel since he was a year old.

When my son was born I fell in love the moment I first saw him. A minute before we’d been told he was dying. My daughter’s birth was the same thing all over again. I have two children because I couldn’t stop with just one. I have two children because that’s as much as I could bear. And for me, what’s different about loving my children is that I’ve never gotten used to them. It’s still passion. Everything they do is beautiful. Every fight makes me want to kill them.

Exploring the living maze at the Bay Area Discovery Museum

They insist that I sleep with them, and I’m worrying about that paper that absolutely must be finished tonight, and I try to get up and get back to the computer and they grab my hands and their palms are sweating. “I love you infinity, Mommy!” they whisper urgently.  “Don’t go!” And I stay.

I am across the room and they are fighting and I see where it is going but before I can get to them one is bleeding and the other is shrieking, “I didn’t do it!” and the world goes black, in that moment I am literally blinded by terror and rage.

It’s been almost seven years now. I haven’t gotten used to it. How could I? Every day they are different people. Every day I fall in love with them again. My heart isn’t walking around outside my body. My heart is right here in my chest, clenched tight as a fist.

Rest assured that my daughter was trying to jump off something when this picture was taken.

Do I worry about my kids? Sure. My daughter, who has never seen a vertical surface she didn’t want to scale and jump off, has been to the emergency department so many times that I have seriously considered making her one of those flip charts like they have at nuclear power plants: “It’s been X days without an accident!” (Fun fact: Matt and I took a tour of a nuclear power plant together, the first month we met.) Make it ten days in a row and you can have an ice cream cone, kiddo. Every photo taken of her at preschool is in motion. My son’s innate cautiousness used to worry me as well. I should be careful what I wish for.

Learning from his sister, my son locked himself inside the delivery box of a Bullitt.

Do I worry that it’s not safe to ride a bike with my kids? Well, there have been moments, but not really. There are always moments, on or off the bike. When I walked down the street with my son as a toddler he was fascinated with everything. He would run into the street when he saw something exciting—letters on a sewer plate, a shiny bottle cap. (Why are streets so dangerous that kids can’t make mistakes? Only drivers get to make mistakes?) I remember driving in a rental car on a suburban strip when my daughter figured out how to open her door, and so she did, right into traffic as we were moving and we screamed, and she screamed because we were screaming, and we tried to move over to the side of the road and get the damned door shut, and then we sat there in the stopped car, panting, wondering if we’d ever drive again.

Sitting in fire trucks is fun, but my kids have little interest in ordinary cars.

I don’t feel particularly threatened by city traffic on our bikes. People fear riding bikes because it’s unfamiliar, not because they’ve reviewed the evidence. Taken as a whole, public health research makes a strong argument for getting out of the car by any means necessary. And we are enjoying the ride. I don’t snap in frustration at my kids as I circle the streets endlessly, praying my son won’t get a tardy slip today because it’s street cleaning day and there is nowhere to park the damned car, there’s never parking in the city. I don’t get stuck in traffic and rack up late pickup fees as my daughter wonders why today she’s the very last one to be picked up at preschool. I don’t have to decompress from a stressful commute when we get home.

Can we take the Bullitt?

“Did you see that?” they ask me when we ride. Did you see that squirrel, did you see that dog, did you see the moon? Will you pick up that leaf for me? Will you carry my rock? Can we stop at the bakery, can we stop at the playground, can we stop at the library? Can we go to the beach? They have a new sense of direction. They know where we are. They ask: can we take 6th Avenue instead of 9th Avenue?  Can we go past the Japanese Tea Garden instead of along JFK Drive? And now I say: yes. Yes, I see it. Yes, I will. Yes, of course we can.

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October 17, 2012 · 9:35 am

More money, less garbage

Our vision through the windshield: impaired

We sold our car about four months ago. Since then I have noticed two major changes in our lives. First, we have more money at the end of every month, which makes sense to me. Second, we now generate less weekly garbage, which I still don’t understand.

The more money thing is pretty nice. It is still new, and makes a happy little surprise at the end of the month. Where did all this money come from? Oh yeah.

Why yes, we can go out for ice cream again.

Given that we were already riding bikes and transit most of the time, transferring the remaining car trips into City Carshare rentals came with no real inconvenience. Sure, sometimes it would be easier to pick up a car downstairs in our garage than from the nearest car share pod. But it was much more hassle to figure out what to do with a car we owned at the end of every trip (Does it need gas? Do I have to pay for parking at work? Did someone hit it?) than it is now to just drop a car back in its pod. Plus, any car picked up at a university pod comes with a university parking pass. The other week I had to put gas in a City Carshare rental. It was the first time I’d been to a gas station in at least six months. “Wow,” I thought idly as I pulled in, “gas is $4.80/gallon now? Well, I don’t have to pay for it.” Then when I pulled out, someone nearly hit the car. “That would be a bummer,” I thought, “but City Carshare would pick me up.”

It was all very relaxing. With the cargo bike now in action, I suspect our car rentals will be even less common in the future, however.

How does a bike that can carry anything generate less trash?

I’m still mystified by why we generate less garbage. Back when our daughter was in diapers, our garbage can was full every week. After she joined the land of the toileted the can was usually about half full. However in the last few months it’s never been more than a quarter full. I might not have even noticed this if I Bike U Bike hadn’t mentioned the same thing, at which point I thought: huh. The recycling also dropped a little, at least until the last few weeks, when we’ve been blanketed with election-related flyers, which is thankfully temporary. There is slightly more compost.

I can’t figure out what changed. Why do we produce less garbage? But I suppose I don’t need to know the reason. The landfill is happy no matter what.

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October 15, 2012 · 9:38 am

You cannot run faster than a Bullitt

This weekend, the Bullitt arrived. We immediately took it out for an 11 mile ride with the kids. Here’s what I’ve learned.

  • After two months without riding a Bullitt I was nervous about my ability to pick it up again. I got the trick of steering it back in about 20 feet.
  • Even with the BionX, San Francisco hills are much steeper than Portland hills. Going up to Bernal Heights I did use the highest level of assist, and I would have been delighted if it went “to 11.”
  • Thank goodness we got the lightest cargo bike.
  • To my surprise, my kids decided to ride together in the box. It’s not all that roomy in there for two older kids, but they were happy. At one point my daughter even stretched out for a nap, although she did not actually nap.
  • The preferred entertainment for two kids in a Bullitt is singing “99 bottles of beer on the wall.” On a five mile ride, that song can stretch into negative numbers. Adding a sound system to this bike has been upgraded from “nice to have” to “critical need.”
  • An unexpected disadvantage of a low box is that the kids assume that they can reach out and pick up anything on the street that interests them while we are moving. We had to have a conversation about that.
  • It is impossible to overestimate how much attention a Bullitt will get on the streets of San Francisco. Lots of drivers pulled up right next to us to ask questions. “I love your bike!” said one.
  • Other bike riders will assume that a Bullitt belongs to a man, and ask my husband questions about it. In response, he will stare at them.
  • This bike can go anywhere in this city with two kids and whatever else we pick up along the way.

On the way back home, on the Panhandle, we spotted: another Bullitt! That was unexpected. It was a milk-white Bullitt (unassisted) with a kid box like mine, but the rider was carrying a big black dog. Given that there are no Bullitt dealers in San Francisco, we were both nonplussed. “Nice bike!” I said. “Yay, BULLITT!” he said. Based on his accent, I think he was Danish. The other riders on the path looked dumbfounded.

On Saturday night before the Bullitt arrived, we had to do a longer-distance errand at night with both kids, and given the distance and the fact that it was dark and our lack-of-a-two-kid-cargo-bike situation, we rented a Nissan Leaf from City Carshare for a little while. We were stuck in traffic for most of the trip. We couldn’t find parking. The kids got fussy. Matt and I were both struck by the fact that we used to do this EVERY SINGLE DAY. We were relieved to return that car. “Okay, that sucked,” said Matt.

Worth the wait

In light of this experience, I hesitate to call the Bullitt a car replacement, although that is arguably the closest equivalent. But the Bullitt is better. Within city limits, it is faster than a car, because it doesn’t get stuck in traffic. With rare exceptions, it can carry more than a car. It can park by the front door of any destination. Our kids enjoy the ride. It turns out we weren’t looking for a car replacement. What we wanted all along was a totally awesome cargo bike.

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October 12, 2012 · 9:42 am

A series of electric assists

This is the first assisted bike I ever rode, a Surly Big Dummy with BionX.

I first tried a bike with an electric assist last March, just over six months ago, a BionX assisted Surly Big Dummy at Splendid Cycles in Portland. It made quite an impression. Later I tried a mid-drive assist at The New Wheel in San Francisco. Then I tried another mid-drive assist and a front hub motor.  Less than a year ago, I could not have identified the difference between these assists with schematic diagrams and prompts from their designers. I wish I knew then what I know now.

The electric assists I have tried:

  • A front hub motor operated by a throttle on the handlebar (eZee)
  • A mid-drive motor operated by a throttle on the handlebar (EcoSpeed)
  • A mid-drive pedal-assist motor (Panasonic)
  • A rear hub pedal-assist motor that responds to torque (BionX)

I have pretty strong feelings about what kind of assist I prefer after trying all of these (BionX, although it’s not perfect). Maybe you have no idea what I’m talking about, but wish you did because you’ve been hearing about this electric assist thing and it sounds kind of cool, but you couldn’t pick an electric assist bike out of a lineup. Read on, friend.

General thoughts

Electric assist bicycles are interesting because they are true car replacements for ordinary people. I have met lots of committed, fiercely strong riders who not only ride to work and for errands and on weekends, but also head for the steepest grades in the city to improve their hill-climbing chops. These guys (they are almost always men) are inspiring, but your average mom of two isn’t going to look at them and say: “Yeah! That could be me!” But put an electric assist on a cargo bike and you are looking at a transportation system that can haul the kids, handle a week’s worth of groceries, dodge traffic, and park right next to the front door of any destination in the city—at the same time. All of this for minimal operating and capital costs, plus enough exercise that you no longer get depressed about not making it to the gym since the kids were born. Many of the factors that make riding a bike seem intimidating—I can’t sweat because I need to look decent for work, no way can I make it up that hill, how am I going to carry the kids, I can’t handle the wind—disappear with an assist. All that’s left to worry about is wet weather. I personally got some waterproof outerwear and found out that I liked riding in the rain, but if I had hated it, heck, we could rent a car on every rainy day in San Francisco without coming close to the cost of owning a car. (In other climates people worry about snow, but from what I’ve read this involves getting some studded winter tires and a cover for the kids and then you’re good.)

Some people like throttle assists (operated by a grip on the handlebar, independent of pedaling) and some people like pedal assists (which multiply your effort as you pedal). My anecdotal impression is that people who come to electric bikes from bikes prefer a pedal assist because it feels like riding a bike. Whereas people I’ve met who ride both bicycles and mopeds, or bicycles and motorcycles, seem to prefer having a throttle. Everybody likes what’s familiar. I came to electric bikes from riding a bicycle as my kids’ weights edged up toward 100 lbs. I didn’t care for the throttle assists I tried.

None of the electric assist systems cost much to charge. Efforts I’ve seen to estimate power costs sort of peter out because they’re so trivial. NYCE Wheels, which sells a lot of assisted bikes and has some great articles on their website about the technology, estimated the cost per charge at maybe 18 cents in New York City, but of course prices depend on local rates. The better systems estimate that a charge can carry an assisted bike at the highest level of assist for 20-45 miles.

Currently there are three kinds of batteries that can power the motor on the market (that I know of): sealed lead acid (SLA), nickel-metal hydride (NiMH) or nickel cadmium (NiCd), and lithium-ion polymer (LiPo). The technology for batteries on electric assists is still considered somewhat experimental. Getting the longest possible warranty from a reputable manufacturer is a really good idea. Expect the battery to last only a little longer than the warranty and you won’t be disappointed. Battery replacement is the true cost of maintaining an assisted bike. Compared to the costs of maintaining a car, it’s still bupkis: with a good warranty, it will run $500-$900 every two years at the most.

  • SLA batteries are the least inexpensive electric assist battery. They’re incredibly heavy and take several hours to charge. Bikes with these batteries tend to have limited range (maybe 5 miles). When SLA batteries won’t hold a charge anymore, they have to be disposed as hazardous waste. These batteries are common on e-bikes in China. If you buy an e-bike at a big box store it will have an SLA battery, and it won’t last long. You’ll be replacing entire bikes more frequently than other people replace their bike’s batteries.
  • NiMH (more common) and NiCd (less common) batteries are somewhat more expensive, still heavy, and bikes with these batteries tend to have greater range (maybe 10 miles). They were considered an upgrade from SLA batteries at one time, but they have their little issues. One of these is charge memory; occasionally you have to drain the battery down or it will stop fully recharging, and you won’t be able to go as far. When they won’t hold a charge anymore, they will not win any awards for environmental stewardship. However in San Francisco, Sunset Scavenger will recycle them if they’re left taped up in plastic on top of a black can. It’s almost impossible to find these batteries on new bikes, as they’ve been supplanted by LiPo batteries.
  • LiPo batteries are the most expensive, most energy-dense, and lightest weight battery option. LiPo batteries largely dominate the market now. Bikes with these batteries tend to have greater range (20-90 miles). Using them with inappropriate chargers or puncturing them can make them explode (exciting!) They can be stored for long periods (1-2 months) without losing charge.

Front hub throttle assist

I tried the eZee front hub motor that comes standard on the Yuba elMundo. This is a 500 watt motor. You can tell there is a motor on the bike because the front wheel has an oversized hub. There are lots of other manufacturers that make front hub motors, and kits made in China, where electric bikes are fairly common, are often found on eBay. However eZee seems to be one of the more reputable manufacturers. On the elMundo there is also a battery attached to the frame, just behind the seat tube (that’s the part of the frame that attaches to the seat) and in front of the rear wheel; however the battery could be placed somewhere else on other bikes (a rear rack, a down tube, anyplace that would hold the weight). The suggested range for this assist system is 20 miles.

  • How it works: You activate the motor by twisting the right handlebar grip away from you. The more you twist, the more assistance you get. When the motor is on, your pedaling appears to add nothing. You can turn the motor on and off with a controller on the left side of the handlebars. The controller is pretty basic; just a switch with lights. The look screamed “high school science fair project” to me.
  • What it feels like: It feels like skitching. Skitching is when you are pulled along by something other than the bike, like when lunatic bike messengers grab onto a passing car. You’re hitching a ride. I have never skitched on a bike because that would be insane, but I have skied. Using a front-hub throttle motor feels a lot like being pulled on a rope tow while on skis (except obviously you’re on a bike).
  • Noise level: Medium. I definitely noticed the sound of the motor while I was riding. I wouldn’t call it noisy, but people walking along the sidewalk alongside noticed the sound, and it also muffles the noise of passing traffic somewhat.
  • Pros: You never have to work going uphill. The eZee motors work with many batteries. They are the Microsoft Windows of electric assists. The system is reasonably priced as electric assists go, although not so cheap that you wonder whether they’re a fly-by-night manufacturer.
  • Cons: A downside of using any of the throttle assist motors is that your power is limited to what the motor can pump out. Pedaling adds nothing. Unfortunately a 500 watt eZee front hub motor didn’t really have the kind of power needed to get two kids up steep hills in San Francisco. I saw one elMundo overheated and out of commission (two older kids on deck, bike on a hill) during our recent Kidical Mass/Critical Mass ride. I have heard other similar stories, although I haven’t personally witnessed them. There is also something weird going on with eZee right now; none of its products seem to be in stock. Using a throttle-operated assist doesn’t feel like riding a bike.
  • Battery type: LiPo. I’ve seen warranties on eZee batteries of either six months or a year.
  • Cost: around $1450 for this motor with a 36v battery.

Mid-drive throttle assist

This is the EcoSpeed Bullitt; the motor is not visible, but note the console above the handlebars.

I tried the EcoSpeed aftermarket mid-drive assist mounted on a Bullitt at Portland’s Splendid Cycles. This is either a 1000 watt or 1500 watt motor; the answer seems to depend on how you frame the question. Mid-drive motors are more efficient than hub motors, so comparing watts between systems isn’t helpful. Unlike many assist systems, the controller did not limit the maximum speed (many state laws limit the top speed on assisted bicycles to 20mph). This discovery led to the following entertaining conversation. Me: “Uh, is this system even legal in California?” Splendid: “Well… no. Maybe. It’s a gray area, legally speaking.”

You can tell there is a mid-drive motor on the bike because there’s a bulbous protrusion near the chain wheel attached to a second chain. The motor drives the second chain and pulls the bike along. On the Bullitt, the batteries were mounted under the front box. You can fit a lot of batteries under the pallet of a long john, and mid-drive motors are pretty efficient; EcoSpeed claims their system can go 35-45 miles.

  • How it works: Twist the right handlebar grip and away you go. More twist, more speed. You can spin the pedals for fun but it’s not necessary, nor does it add any power or speed. The controller is a complicated-looking little computer on the handlebars that details the remaining battery power, speed, mileage, etc.
  • What it feels like: Hard to describe. It’s kind of like riding a train? I could feel that the motor was moving the bike underneath me, but it didn’t feel like I was being pulled; it wasn’t like a front hub motor.
  • Noise level: Unbelievably loud. It sounded like a moped.
  • Pros: This is an insanely powerful motor. It would be great for a construction company. Attach a trailer and you could haul, I don’t know, a load of concrete blocks up steep hills for miles on end. It would be overkill for hauling my kids around the city. Nonetheless, they thought it was wildly entertaining. They still ask about “the fast motor” sometimes.
  • Cons: It’s really noisy and really expensive. It may or may not be street-legal. The motor is so powerful that evidently it sometimes breaks chains on bikes. Using a throttle assisted bike doesn’t feel like riding a bike. To be honest the EcoSpeed scared me a little. I think this assist is best suited to someone who really understands the mechanics of electric assists. I am not that person.
  • Battery type: LiPo. The battery supplied by EcoSpeed has a two year warranty. There’s an option to supply your own battery.
  • Cost: $4,195 for the motor with battery, $150 for the computer.

Mid-drive pedal assist

Two types of bikes at The New Wheel: the Focus has a mid-drive pedal assist, the Ohm next to it has a BionX assist.

I tried a Panasonic mid-drive pedal assist on a purpose-built electric bike at The New Wheel in San Francisco, a BH Emotion Diamond Wave+. Some of the European assisted bikes have really weird and complicated names, I’m sorry to say. I’m going to refer to this bike as the Emotion because that was the name emblazoned on the down tube.

The Emotion has a 250 watt motor that’s built into the frame of the bike; you can tell it’s there because the chain guard looks really fat, like it’s been pumped up on steroids. Because the manufacturer built the system into the bike the torque/motion sensor is hidden inside the frame. There is also a battery mounted behind the seat tube and in front of the rear tire. Like many of the higher-end electric assist bikes, it comes with lights, fenders, chain guard and rack; this bike is designed to be used for transportation, not as a toy.

Mid-drive motors are so efficient that it would be a mistake to think that the comparatively low wattage means that you’re sacrificing power. On this bike I could easily scale hills that I’m fairly certain would have knocked out the eZee entirely. (The New Wheel is cleverly located near some of San Francisco’s more scorching hills. In my neighborhood the hills top out at a 25% grade; there are steeper hills near the shop.)  The BionX and EcoSpeed motors could handle the same hill; in fact I was riding with a friend who was on a BionXed bike (350 watt motor) at the time and he was just peachy. However the suggested range of the Emotion was 45 miles, whereas the suggested range of the BionX bike he was riding (an Ohm) was 35 miles.

  • How it works: There is a controller on the left side of the handlebars where you set an assist level of low, medium, or high (or off). Once it’s on it sends power as you pedal to multiply your effort. On low I wanted to gear down to make pedaling comfortable. On high, gearing down for the hill was optional.
  • What it feels like: Using the mid-drive pedal assist motor felt like riding a beach cruiser along the waterfront regardless of how steep a hill I attempted to scale. People do that kind of thing for fun on vacation. If you ride on a lot of hills already, the experience of using a mid-drive pedal assist is both intoxicating and a little spooky. If you always wanted to ride a bike but don’t because you live on a steep hill, this bike is a dream come true.
  • Noise level: The motor itself is silent. There was a slight rattling from the chain when the motor was running. It was fairly quiet but I noticed it, although someone walking on the sidewalk next to me wouldn’t have.
  • Pros: I like all of the pedal-assist systems because they feel like you’re riding a bike, but you don’t have to suffer (unless you want to). However this system is probably the most sophisticated I’ve ever used in that it doesn’t require you to think about how you’re riding: set the assist and forget it. The mid-drive motor works with internally geared hubs. The motor and battery are unobtrusive. There is a neat feature on most of the European assisted bikes, the “walking assist”, where you can push a button and the bike gives a trickle of power that makes it feel like you’re walking a bike that weighs 10 pounds instead of 50 pounds.
  • Cons: The biggest con is that these systems are currently only built into one-person commuter bikes (but see below for notes on the Stokemonkey). So although you could add a child seat to a bike like this, there isn’t any way to use the assist system to haul serious cargo or two kids, even though the motor is capable of handling those loads. Beyond that there’s only trivial stuff. If you’re using to riding a bike on hills, learning to use this kind of assist appropriately can be a little weird. The goal is to maintain a steady pedaling rhythm and not bear down on the hill, or even necessarily shift down (unless it would make it easier to maintain cadence). I had to remind myself not to *try* to climb the hill. It was like The Matrix: “There is no hill.” But if you haven’t been riding on hills a lot, this won’t be an issue. You’ll take to it immediately. Another minor issue is that people who like to tinker get frustrated that these are closed systems; you can’t mess around with the bike. However I have trouble believing that people like that would have the slightest interest in this kind of bike anyway.
  • Battery type: LiPo. The entire bike has a two-year warranty.
  • Cost: The entire bike, including the electric assist, costs $3,300 at the New Wheel; they offer 12-month 0% interest financing as well.

The Stokemonkey

Once upon a time, there was an aftermarket mid-drive pedal assist system specifically meant for cargo bikes , the Stokemonkey (designed and sold by Clever Cycles in Portland). Although the motor was created for longtail cargo bikes, Stokemonkeys have also been used on front loading box bikes (this is not recommended by the manufacturer, however).  I have, sadly, never ridden a bike with a Stokemonkey. However reports from people who have ridden them claim that the motor is silent, the assist is seamless, and that a stoked, fully-loaded cargo bike can easily climb any hill. The Stokemonkey was withdrawn from production when the cost of parts increased, but is apparently coming back at an unknown (to me, at least) future date and price. Yeehaw!

Rear hub assist that responds to torque

The BionX system can go on any bike with a rear derailleur, including this Yuba Mundo.

I have now ridden two different bikes with aftermarket BionX pedal assists, both in Portland: a Surly Big Dummy and a Bullitt. In both cases the motor was the PL-350 (350 watts), which is the model recommended for climbing steep hills. The BionX controller gives you the option of choosing between four levels of assist, which range from a 75% assist to 300% assist. There is also a thumb switch that acts as throttle, giving the bike a burst of power at the highest level. This is a handy feature when you’re crossing an intersection. The BionX system only provides an assist if you’re moving at least 2 mph, however, so the initial start has to be powered by the rider. This ensures that the bike won’t jerk forward if you accidentally brush a pedal while stopped.

The BionX is a rear hub motor. You can tell it’s there because the hub of the back wheel is much larger than normal. The (proprietary) battery comes in two versions. One is an odd and obtrusive tear-drop shape, which can be mounted in a couple of different places but usually goes on the down tube. The other is a less-obvious flat pack that mounts below a special rack. Although the rack mount is unquestionably more attractive, I have heard from more than one bike shop that the rack mount can be problematic, because that much weight placed high on the back of the bike can make it very tippy. Add kids to the rear deck and the problem is intensified.

The BionX system is an unusual pedal assist system for two reasons: first, it responds to torque, and second, it has regenerative braking.

The BionX provides more or less assist depending on how hard you press on the pedals. For this reason, riding with an assist feels the same as riding without the assist, except you’ve grown massively stronger: push down hard on the pedals and you rocket forward. For people who’ve been riding on hills for a while without an assist this is an intuitive system to use because it mirrors the way they already ride.

Regenerative braking means that as you go downhill and brake, the battery recharges a little. This is a little bit of a gimmick, but not totally. For some reason, many people I talk to about electric assists to seem to think that pedaling the bike should provide all the charging they need for the assist system, as though an assisted bike were some kind of perpetual motion machine. I suppose this is technically possible, but only if you worked exactly as hard as you did on an unassisted bike, in which case, what would be the point of having an assist? Setting aside the expectation of a free lunch, however, regenerative braking has some advantages. The first advantage is that you can use the system to slow the bike while going downhill by setting the controller to a negative assist, turning it into a hub brake. On steep hills where brakes can overheat, which are all over San Francisco, this feature is outstanding. I am paranoid about brakes, so the news that BionX assists came with an independent second braking system had the same effect on me as a face mask full of nitrous oxide at the dentist. Whee! The second advantage is that regenerative braking can decrease range anxiety, because after going downhill you have a little bit more range.

  • How it works: There is a controller on the right handlebar that allows you to set an assist level; there are four levels of assist (and four levels of negative assist that act as a brake). There is also a thumb switch that acts like a throttle and gives a burst of power at the highest level of assist. The controller is also a computer that provides information on speed, distance traveled, and remaining battery life. It is a slick little machine, the iPhone of controllers. Once an assist level is set it sends power to multiply your effort. You can set an assist level and forget it, and just ride around faster than usual with no fear of hills.
  • What it feels like: They call this system BionX for a reason. When it’s on it makes you feel like you’ve suddenly developed super strength, but without the sordidness, health risks or expense of taking performance enhancing drugs. Because it responds to effort (torque), it really does feel just like riding an unassisted bike, except that the experience has become much, much easier. You still use the gears, but don’t ever slow down so much that you wobble on the hills.
  • Noise level: Completely silent.
  • Pros: This system feels more like riding a bike normally than any other assist I’ve used, and yet is powerful enough that I had no trouble hauling two kids up steep hills. In Portland, riding the BionXed Bullitt, I didn’t even need the highest level of assist to clear the local hills without difficulty on brutally hot days. On the hottest day we were in Portland (with a high of 105F), however, I did turn the assist to the highest level and it allowed us to go fast enough to catch a breeze even though I was putting in minimal effort because I feared I might pass out from the heat.
  • Cons: The BionX system currently only works on bikes with a rear derailleur and not with internally geared hubs (however BionX will be releasing a system with a 3-speed internally geared hub next year; this system will only be for purpose-built assisted bikes, however, as the torque sensor has to be built into the frame by the manufacturer). Having to get the speed up to 2mph before the assist kicks in can make starts on a heavily loaded bike very wobbly. There is no walking assist, which would be helpful. (If you make the mistake of trying to use the throttle button as a walking assist, as I once did, the bike will lurch ahead faster than you can follow it.) The BionX system is proprietary and does not allow the use of less expensive batteries from other manufacturers. This really ticks off people who like to tinker with their assists: BionX is the Apple of electric assists.
  • Battery type: LiPo. BionX offers a two year warranty.
  • Cost:  Ranges from $1200-$1800. The more expensive systems are better hill climbers and have greater range.

My conclusion

After riding all of these systems, the one that seemed best suited for our needs was the BionX (but how about a walking assist, BionX?) However, because the battery technology for all electric assists is still a little spotty, I wouldn’t get an assisted bike without the kind of gearing that would have a sporting chance of getting me up serious hills if the battery failed. Our new cargo bike has a wide range of gears.

Our needs are not everyone’s needs. I suspect a mid-drive pedal assist bike would be the best choice for an inexperienced rider facing steep hills. If I wanted to carry seriously heavy loads on a cargo bike, an EcoSpeed would be the better choice (or if it were available, a Stokemonkey). Personally, I didn’t really like being pulled along by a front hub motor, and the version I tried was underpowered for San Francisco hills. However many people like these motors better–I recently talked to one dad who wouldn’t consider any other kind of assist–and it’s possible to buy stronger assists for a front hub. Moreover there are some relatively inexpensive front hub systems available. Battery experience with these systems may vary.

No electric assist with any longevity is inexpensive, and some of them cost more than the bike itself. However I know many families in San Francisco who ride bikes but own a second car only to get the kids to school on top of a steep hill or because they can’t get a week’s worth of groceries home on a bike. Compared to car ownership, an electric assist is a bargain indeed.

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October 10, 2012 · 10:59 am

The traffic problem

Blah blah blah hills in San Francisco blah blah blah

When we started riding with our kids in San Francisco, we faced two big issues: hills and traffic. Okay, there was also the wind. It’s really windy. I’ve gotten a lot stronger, though, and what’s more, an electric assist will resolve nearly any hill and wind problem. Soon we’ll have two assisted bikes. So I label those problems: solved.

This is the western approach to my office at Laurel Heights. There are a lot of tight squeezes en route.

The traffic issue was initially really intimidating. It is illegal for adults to ride bikes on sidewalks in the city, for good reason: there are lots of people walking on them. There are a lot of cars on the street. Cars in San Francisco pass really, really close. They are occasionally going much faster than we are, although that happens less often than you might think. Yet cars are big and heavy and could quite literally crush us like bugs. When I started riding there were occasional moments of sheer terror, like when I hit an unexpected stale green light while crossing an eight-lane intersection, and it cycled through yellow and on to red before I’d made it halfway across. There were times that cars turning next to me felt so close that I seriously thought they were going to mow me down, and I ran the bike up onto the curb.

Cars tend to hug the yellow line when passing bikes on my morning commute.

Yet there were only so many perceived near misses I could experience before recalibrating my definition of what was dangerous. San Francisco drivers don’t give anyone much space, but I know from talking to them that they are not trying to be intimidating. The roads are narrow and people in cars are used to passing other cars with only inches to spare. Cars get dinged up in the city as a matter of course because the standard approach to parallel parking in a small space is to back up until you hit the bumper of the car behind you, then move forward until you hit the bumper of the car in front of you, etc. City cars carry scrapes along their sides from tight merges. By the standard drivers apply to each other, you actually get a lot of room on a bike. After experiencing the first thousand close passes I simply couldn’t perceive them as life-threatening anymore. Would I prefer a three-foot passing rule? Heck yeah. But thanks to AAA and Governor Jerry Brown, that’s not going to happen anytime soon in California.

The Market Street bike lanes never lack for excitement.

We have adjusted. By the standards of people outside the city, I realize we must now look like psychotic bike messengers. I have no problem weaving through a two-foot gap alongside a line of stopped cars. Matt and I have both threaded through spaces much narrower than that with our kids on deck by heading to the right hand curb, leaning the bike a little, and pushing along with the curbside foot until we’ve passed, say, a broken-down bus whose driver is trying to reattach it to the overhead wires. Yet I don’t think of myself as particularly aggressive. I don’t run red lights, and I stop at stop signs. I’m not thrill-seeking; squeezing through pinch points is par for the course when riding on certain streets. Nor, for that matter, is anything I’ve done remarkable by the standards of San Francisco cycling, with or without kids involved.

Our son waits for the left turn signal to merge from the Wiggle to Fell Street on a recent Sunday. He was singing to himself when I took this picture.

Our kids have adjusted to city traffic even better than we have. My daughter occasionally taps on the windows of cars that pull up next to us at a stop, just to say hi. We’ve often held conversations with drivers and passengers at intersections; in many cases they’ve pulled up within a few inches specifically to talk to us: “Did you know your daughter is sleeping in the back?” “Where did you get that bike?” My son is unperturbed by traffic that I still find intimidating, and we have had to convince him not to do his tricks (“Look! I can put both feet off to one side!”) Kids are allowed to ride on the sidewalk, and because he’s aware that he tends to weave a little going up hills, he peels off our little peloton to the sidewalk when we head uphill so he has some room, and then slips back between us at the next curb cut when the ground levels out again. Along the Wiggle, there is a merge point where bike traffic is shunted across the travel lane into a dedicated bicycle left turn lane that runs in the middle of the road for a full block, and he cheerfully navigates this lane with cars rumbling by a few inches away on either side.

Our son learned to ride on these streets and sidewalks in our neighborhood.

Normal is what you’re used to, and after the first couple of months of riding I never thought about any of this until my mom came to town. I wanted her to have a chance to ride the mamachari, her first spin on an assisted bike, and one that was her size to boot. I figured we could ride a little on (what I perceive to be) our quiet neighborhood street, which is where my daughter rides her balance bike. No problem, right? She was worried about the traffic. “What traffic?” I asked. By traffic she meant there were cars. There were cars driving on our street, maybe 3-4 every minute on a quiet afternoon. I said we could walk down the hill to the park and ride there, in the parking-protected bike lanes. I didn’t realize when I made this offer that she meant she wanted to ride someplace with no cars at all. It turned out that by her standards even the Panhandle path, which is completely separated from cars, was too busy (and I didn’t even consider taking her there because the access points to the Panhandle are too heavily trafficked).

Usually I feel pretty good about these parking-protected bike lanes in Golden Gate Park (even though cars park overlapping the buffer zone).

So I took my mom down the hill, and she gamely got on the bike. And every time a car came within five feet of her, which was basically constantly, she was so frightened that she fell off. Even the parking-protected lanes freaked her out. She asked me to ride ahead. It turned out that this was because at every intersection, she dropped the bike when cars pulled up alongside. All of the drivers who saw this politely stopped, waited for her to get back on, then moved forward as she did, and of course she would fall off again as a result. When I figured out what was happening I felt like such a jerk. By that point my mom was drenched in fear-sweat and trembling and begged to walk the bikes home. She was terrified to ride in the city. She barely got a chance to try the assist. She liked it though. That was the only redeeming feature of the whole experience.

So hey, I’m a lousy kid! I sent my poor mom into a tailspin of terror. My only excuse is ignorance. I had no idea. I guess people really can get used to anything.

This is my normal route to work. Cars stop in the bike lane for school drop-offs; riders have to weave around. This registers as “annoying” now.

Whether people should have to get used to anything is a different question entirely. There is something deeply wrong with this city if its streets are terrifying to strangers, if they’re something that you have to get used to. And it’s not being on a bicycle that’s the issue: my mom won’t drive in San Francisco either. The result would be nearly the same: sure, she wouldn’t fall down behind the wheel of a car (yes, I’m a jerk) but she would still end up trembling and terrified. There is just so much going on. Drivers, particularly weekend drivers from out of town, get overwhelmed: on the way home from work on Friday night, I watched a distracted driver nearly roll his car over a pedestrian in a marked crosswalk (we talked after the oblivious driver had passed; he was shaken but fine). I can now spot suburban drivers out of their element pretty quickly and take evasive action, but why should this be necessary? A far better solution is many fewer cars moving much more slowly.

The Post Street bike route switches from sharrows to bike lanes. I see families riding this route fairly frequently on school drop-off mornings.

It may not sound like it reading this, but I feel much safer on a bike in difficult situations than I do in a car. I am not trapped in a lane. I can run up onto the curb or between parked cars if I feel threatened. In the worst case scenario, I can move onto the sidewalk and walk the bike. With rare exceptions, I do not travel on streets where traffic moves fast anymore, which inevitably merge with streets where traffic moves slowly, at which point there are collisions. We do rent cars occasionally, but I avoid it when I can because in a car, we are stuck in traffic. If a distracted driver becomes a threat, there is simply no place to go. Given that the current street design makes collisions inevitable, I’d rather be riding in a bus if we have to get involved. The bus always wins.

We ride on the Webster Street bike lanes to take our son to school. If our timing is good we meet other Rosa Parks families en route and make a bike train. If not, we wave to friends in cars.

Like everyone else I know who travels regularly by some mode other than a private car, I have always been a big fan of what advocate Gil Penalosa calls 8-80 streets: streets that feel safe to anyone from ages 8 to 80. Yet I never really understood what that meant until last week on a bike with my mom. I thought it meant things like the parking-protected lanes in Golden Gate Park where I like to ride with my kids, where they can bob and weave without risk of being run over. But those kinds of tricks with paint are the tiniest part of safe streets. In a parking protected bike lane my mom was still afraid. Riding with my kids, neither of whom is even eight years old yet, led me to underestimate the need for safer streets. My kids are fearless. They have adapted.

This is a safe street: on Sundays (and Saturdays from April to September), JFK Drive is closed to cars.

I realize now that safe streets are something else entirely. They would save us from ourselves. I’m glad I can navigate the streets of San Francisco as they are now on a bike, but I’m appalled that I didn’t remember that it was something I had to learn. If I hadn’t ridden with my mom last week, I would never have realized how much more change is needed.

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October 5, 2012 · 10:05 am

San Francisco Bicycle Coalition Family Bike Day

I spotted this amazing red Onderwater right away. What a beauty!

There are some insanely awesome family bikes in San Francisco. Granted, to the best of my knowledge no one in the city is hauling seven kids on a Bakfiets (although I hear there are a couple of Bakfietsen in San Francisco, in the Mission). However the fabulously varied terrain of the city has led to all kinds of family bikes on the move. We saw many of them at the SFBC Family Bike Day last Saturday.

My kids’ lust for a tandem has not dimmed in the last year, so we were all very excited to see our second Onderwater family tandem, now roaming the streets of San Francisco. This bike is so cool. The dad who rode it had gotten it from My Dutch Bike, and said that having the kids in front made a world of difference in riding with them. This was their school commute bike. It was amazing.

This is the rare and elusive Joe Bike, now discontinued

Almost as obscure was the now-discontinued Joe Bike Boxbike, which was evidently purchased sight unseen two years ago and shipped to the city from Portland. Most of the family bikes, like ours, were basically bikes with a child seat slapped on the back: child seats are a cheap and effective way to get a kid from here to there, but they lack some style when stacked up next to the dedicated family haulers.

The Rosa Parks crew was also there in force, some with bikes and some looking for bikes. Over the course of the day, as bikes came and went, I must have seen a dozen orange Yuba Mundos; a couple were assisted, including the unstoppable BionX Mundo that we see most days on the way to school. I am continually impressed at the way that Yuba has hit a price/functionality point that is getting so many families on bikes.

The Metrofiets had it all.

In the One Family Bike to Rule Them All category was the Metrofiets that showed up later in the afternoon, complete with (now discontinued) Stokemonkey assist and Follow-Me tandem. Jaws dropped. There is nowhere that bike cannot go. It got so much attention that I realized it must be a real burden sometimes to ride a bike that is such a work of art. I get enough attention as it is just on the mamachari and the Brompton, which are pretty weird by themselves, but they aren’t in the same class.

My son was a little short for the blender bike, but pedaled on for the promise of smoothies.

The Family Bike Day was partly about showcasing family bikes, but it wasn’t just a roll call. The SFBC had brought a bike blender, and my son was so delighted that he made four smoothies on it, stopping only when he got so tired that he smashed his crotch on the top tube. That was a bad moment. There were classes on Biking While Pregnant (pro tip: raise your handlebars) and Biking with Toddlers (world’s easiest class to teach: “Let’s go look at all the bikes people brought”). At one point attendees were asked to organize by neighborhood as a way to make friends—alas, we were the only representatives of the Inner Sunset, so ultimately we formed an unofficial alliance with Rosa Parks parents from the Haight and the Presidio. My kids bought t-shirts and played in the grass.

Bike parking for prospective family riders

I ended up talking with a lot of the volunteers from SFBC, one of whom commented that it was frustrating that San Francisco was so far behind Portland in family biking. “Half the people here bought their bikes in Portland,” she sighed. “Uh, we just did the same thing,” I admitted. The reason why is pretty obvious: Portland has three bike shops targeting family biking, and San Francisco, well, doesn’t. We went into one bike shop that got annoyed when we tried to try out their demo child seat by putting my daughter into it (*cough* PUBLIC! *cough*) However I think that child-friendly bike shops are the result of the city becoming friendly to family biking rather than the cause of it. Several years ago, Portland started aggressively putting in bicycle infrastructure that felt safe enough to draw families. (Plus it’s mostly pretty flat. Yes, there are some hills in Portland, but not on the same scale.) If San Francisco continues on the same path, why wouldn’t the results be similar?

“I go so fast! Whee!” San Francisco still lacks routes that she could ride.

Even so I see many, many more families riding in the city than there were even a year ago. I see it at our son’s school: the kindergarten class has more regular riders than the entire school did last year. It’s still primarily dads that I see on the streets with kids, but at Rosa Parks it’s mostly moms. More families appear on the streets and more lanes go in that feel safe to ride with kids, and then even more parents think about riding themselves. I talk to these on-the-fence parents every week. They want to try riding with their kids one day a week. They want to figure out a route that is safe for kids. If they live on hills, they are thrilled to learn that there is such a thing as an electric assist.

I think my kids will be grown before this shift away from always driving with kids is complete. But I’m glad it’s happening. I can imagine how welcoming San Francisco could be with safe streets every day. We have traveled enough that I know what a city designed for people feels like. It would be worth the wait.

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October 3, 2012 · 9:47 am

Kidical Mass, Critical Mass

Getting to Critical Mass involved some serious traffic maneuvering. This bus was stopped completely, so we had to squeeze between it and the curb. And that is why I like narrow bikes.

It was a busy weekend for our bikes. On Friday, we attended San Francisco’s first Kidical Mass, which was an auxiliary of the 20th anniversary Critical Mass. We don’t live anywhere near the Financial District where the ride starts, plus we have little kids and almost never go out on Friday nights. As a result it had been years since we had any exposure to Critical Mass whatsoever, and we’d never ridden in one.

To make things more complicated, Matt had rented a car for a work meeting in the South Bay in the morning, had left late, and was caught in traffic returning to the city. He didn’t make it home until 40 minutes after we were supposed to leave. It is fair to say that his delay caused a modicum of tension in in the Hum household. If I had had the new cargo bike already, I would have taken both kids myself, but I had no way of doing that with our current bikes and I couldn’t take one kid and leave one home either. The list of things we could do if we had the new bike has reached the point where I now wonder a couple of times a week if waiting until October in exchange for free delivery was my best decision ever.

This woman had both a kid on the back and a dog in front!

So anyway, we got there late. Luckily for us, the ride started late too. Although many families had apparently left, pleading bedtimes, there were still a few people there with kids, and it was wonderful to meet them. I was particularly enamored of the family with stuffed animals zip tied to their helmets (who were understandably featured in all the local news coverage). The families riding in San Francisco are absolutely fabulous. Mostly I hang with the Rosa Parks parent crew, so I sometimes forget how many more people are out there.

This was a huge, huge ride, and as a result, there was about as much walking as there was riding. I was surprised at how philosophical many of the drivers caught in traffic were about the event. On some level, I suppose it is much like getting caught in traffic for any other event—game day, Occupy protest, whatever—just part of driving in the city. I am happy to have left this all far behind us.

Yes, there is a flaming broomstick on the back of that bike. It’s something to consider now that Jerry Brown has vetoed the 3-foot passing rule.

Although it was a new experience, and a slow ride, my daughter and I were having fun being around all the bikes, especially the unusual ones: tall bikes, conference bike, music bikes. We also saw a Yuba elMundo with two kids on board (not part of the Kidical Mass crew) stopped on the hill up Market Street because the motor had overheated. Unfortunately my son, who had spent the day running around for Undokai (Japanese Sports Day), was hungry, tired and frustrated and started crying and demanding to leave. We told him we would leave early and take him to a Mexican restaurant off the Wiggle on the way home, which improved his mood.

The conference bike had a little kid in the middle (a bad shot I realize).

And this is when the ride got funny. We peeled off from the main ride to the Market Street bike lanes heading west. “Where are all the bikes?” my daughter asked sadly. A few blocks later, the mass rushed into the lanes ahead of us. “Yay!” she said. We turned off from the ride and headed up another street. “Where are all the bikes?” A few minutes later, the mass rushed through the same street we turned onto. “Yay!” When we got onto the Wiggle, we rode for a few blocks on our own again, then whoosh! Critical Mass returned. We finally lost the ride for good when we headed directly up Page Street, which is far too steep for the fixie crew.

When we got home, my daughter was still missing all the bikes, and wondering at bedtime when they would come back. At the rate our ride was going, I think she expected them to show up in her room. But stuffed as she was on avocados and fried plantains, she fell asleep before she found out.

Our trip with the neighbors through Golden Gate Park seemed like a good potential Kidical Mass route.

I would love to try another Kidical Mass ride, independent of other rides on a more child-friendly schedule. We had a lovely ride with some neighbors on Labor Day in Golden Gate Park, which started with the kids running around at Koret Playground. From there were headed through the closed streets to the food trucks on the Music Concourse for ice cream and onward from there down JFK Drive. For kids on their bikes, practicing on streets closed to cars is very nice. Matt suggested that a future ride go along JFK all the way to the Park Chalet at Ocean Beach, which despite its horrific service and indifferent food has extensive bike parking, a huge open yard and seating, and interesting woods behind the yard where kids can play and parents can practice their free-range parenting skills. Any interest? If so, perhaps one of these upcoming Sundays could be another Kidical Mass.

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October 1, 2012 · 9:16 am

30 days of biking, again

Two kids in a good mood can fit on a midtail.

Last April, 30 days of biking was a challenge. There were some late night trips around the block, and unnecessary errands after the kids went to bed (sure, why not get another carton of yogurt?) to ensure I rode a bike every single day. This September, in the bonus round, it was very easy. The difference? At the end of May, I bought the electric- assist mamachari on craigslist. And at the end of June, we sold our car. With no car to fall back on and an assisted bike to crank up the hills at the end of a long day at work (with a 2nd grader on the back), riding a bike every day was such an obvious choice that 30 days straight was no struggle at all.

My son riding the Bullitt’s top tube in Portland

This week my mom is staying with us while Matt is in Brazil. She was sitting by the front window when I left this morning. “In the last five minutes,” she said, “I’ve seen six bikes, three walkers, a bus and a shuttle bus pass, and only 12 cars.” She lives in a very bike-friendly community, but the share of transportation held by anything other than private cars is nonetheless very low. And although she lives on a hill too, the one we live on is steeper. “Do all those bikes have electric assist?” she asked. Most don’t, although that’s changing—as the kind of people riding bikes changes, the demand for assisted bikes increases. Not everyone wants to shower when they get to work, even if they could.

The Haight fire station has the best logo in the city–a Grateful Dead skull.

This morning I rode my bike to work too. San Francisco has begun its real summer, at last, after four months of fog and chill. The city’s surreal climate always leaves me bemused. It has warmed up just as the leaves start falling from the trees. I grew up with more conventional weather. I never know what to expect until I step outside, and as a result I’m always attentive, in that same strange way that traveling to a strange place keeps me alert. We’ve lived in the city for five years now, and it still surprises.

On the ride in I watched the round moon hanging low in the pale blue sky. In the park, today’s naked jogger was the kind of man who did not make naked jogging repellent. This was a rare and welcome change of pace. The day seemed brighter than usual with the fog burned off.

My son’s classmates fit three to a bike.

In many ways, despite our itinerant ways, we are deliberate people. By my standards, our decision to start riding bikes with our children was unplanned, and our decision to sell our car was outright whimsical. I have no regrets. In hindsight, these choices seem like the culmination of many decisions taken over the years. We moved into the city to be close to my work, and later Matt also found a job within city limits. We jumped into San Francisco’s public school lottery hoping our children would grow up taking field trips to the opera and symphony and being comfortable with many definitions of families. This year, my son and his entire 2nd grade class will be dancing with the San Francisco Ballet. I couldn’t ask for more. Years ago, if I had looked at our future lives, it would have seemed that the things we gave up—two cars, a yard, months of sunny days, desirable neighborhood schools, the chance to own a house—were sacrifices. Instead we have more than we ever could have imagined.

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September 28, 2012 · 4:51 pm

Mt. Sutro’s cloud forest: the path less traveled

We looked out over San Francisco from the first flight of stairs to Mt. Sutro. This landing is about 200 horizontal feet east of and 12 stories above our front door.

Although we love our bikes, we still think of ourselves as pedestrians a lot of the time. This is sort of nice, because riding a bike is so much faster than walking that I always think I’m getting away with murder when I arrive more quickly than I could have on foot. It’s also useful in other circumstances. The other week, we needed to head to the other side of Mt. Sutro when the main road was under construction. So we hoofed it through the cloud forest.

The largest courtyard on campus–my son’s preschool graduation was held here.

Our route over Mt. Sutro goes through campus on a path that’s closed on weekends to people who lack an access card. In the back of the hospital and clinic buildings are a series of courtyards where the university flattened out a bit of turf here and there. It makes for nice views from the building and gives the kids a chance to run around.

The next set of stairs, partially obscured by the forest

From the main courtyard we head into the forest. The stairs up the hill are why we will never ride our bikes up there. There are people who ride mountain bikes in the cloud forest, but they have to carry them up the stairs. That’s never going to happen with our cargo bikes.

Coming back down the other side

Our daughter didn’t have the stamina to make it up on her own, so Matt carried her for most of the way. It turned out that there were volunteers and city workers out on the trail clearing poison oak so it’s probably just as well she wasn’t walking.

We did actually meet a mountain biker while we were there. He had stopped to let us pass as we came close. I asked if he wanted to get by, and he panted, that no, he was happy to get the rest. I know how that goes. He had carried his bike up the shorter flight of stairs on the other side of the mountain but it’s still a slog.

Down the stairs, heading to the fire station

We came down the the other side and headed to the fire station to play on the trucks, then to the bakery and the hardware store. Our son was too tired to go back up and down the mountain, so on the way back we ended up walking along the closed road that the city was repaving. It’s a shorter walk but was decidedly less pleasant.

This is San Francisco too.

It’s such a haul up the hills that we don’t go up Mt. Sutro often, but it always amazes me that there is such a place less than a couple of blocks from where we live. Admittedly those two blocks are almost completely vertical. But San Francisco is so densely populated that it is unnervingly wonderful to walk for a few minutes directly into the dead silence of the forest.  It is hard to believe in that moment that this is all part of the city.

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September 26, 2012 · 9:21 am

Rosa Parks Fall BBQ

One part of the bike parade

On Saturday we headed to the annual Rosa Parks PTA Fall BBQ. We have been there before, but this was the best year ever, because this was the first year there was a bike rodeo and a bike parade. Attendance exceeded previous records, and so many people came by bike that they had to create overflow parking. We are a mighty bike community.

The Madsen and a few other bikes stayed behind during the bike parade.

My husband says that bikes are to schools as lesbians are to property values: a marker of great things happening. I have been taking photos like crazy on school mornings because the amazing new kindergarten class at Rosa Parks is simply packed with family bike commuters—4 Yuba Mundos, a bike with a Trail-Gator, a bike with a trailer, and so on. Plus the families I wrote about last year keep on keeping on. Not only were many of these families there on Saturday, there was a new bike on the yard, a real-live Madsen. I didn’t meet the family riding it but was told that they recently moved to San Francisco from Japan. I assume that they must live close by because this was an unassisted Madsen.

Two kids on one 20″ bike slay the obstacle course. Who needs Fiets of Parenthood? We have Fiets of Childhood.

Kids on their own bikes were out in full force on the lower yard, and before and after the parade (which was led by the principal). Not every kid who wanted to ride had a bike so they began loading each other up on their bikes to make sure everyone got a spin. I had to laugh thinking about how much angst we’d had over child bicycle seats. With kids old enough to sit up, you can simply seat them right on the top tube. It worked in My Neighbor Totoro, it works for a dad at school still hauling his now-1st grader to school that way, and it definitely worked for the kids. Sure, a spare saddle or a foam pad is a nice addition, but it doesn’t seem to be necessary. And the weight distribution is very good, right between the wheels and probably better for the bike than a rear seat. When they couldn’t fit two kids on the top tube in front of a rider, they improvised, and put one kid on the top tube while the other stood on the back. I had no idea you could fit three kids on a such a little bike. And these kids went fast once they loaded up.

More of the bike parade whizzes by, and Rosa Parks smiles above it all.

I’ve written before about how much I love our son’s school, which not only is a wonderful community for our son but provides me with endless entertainment, including camping with friends from school and digging up tombstones at kids’ birthday parties. It just keeps getting better. The other morning my son and I met two families coming up Webster Street on the way to school and formed an impromptu bike train up to the school yard. This morning I rode and chatted with one of the Yuba moms on the way from school to work; she took that bike, with her preschooler on the deck, up the heinous Post Street hill. They went slowly but never faltered. I never dreamed that I could have so much fun commuting. Fortune smiled when the San Francisco school lottery sent us to Rosa Parks.

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