Archive for the ‘Bikes’ Category

Henry Workcycles

Saturday, May 31st, 2008

I thought sure I wrote a post about Henry Workcycles earlier, but I guess it was only on Gadgetopia.

bakfiets.jpg

Henry Workcycles creates bikes that are beyond unique and beyond cool, built to fit some very specific uses:

school_bus.jpg
Hauling kids…

transport.jpg
Hauling, um, stuff. Note the sturdy platform over the front wheel…

long_cargobike.jpg
Hauling even more stuff…

kruisframe.jpg
Hauling a bible (this one is known as the “Preacher’s Bike”)

So many great looking machines made by these people… I’m sure there are a lot of other builders that make similar bikes in that part of the world, but Henry Workcycles has a great web presence (and in English too!) As neat as these bikes are, my knees combined with even the minor hills around here make them the stuff of daydreams for me. In the Netherlands however… a totally different story. There the terrain is much flatter, lending itself to large, heavy bikes carrying heavy loads. The hills around here aren’t enormous by any measure, but I still wouldn’t want to be pedaling a monster like that flatbed cargo bike up the hill to my house. My knees hurt just thinking about that.

Renovo Hardwood Bicycles

Saturday, May 24th, 2008

I like bikes, and I like things made of wood. And holy cow, I had no idea you could combine the two on this level… I’ve seen some nice bikes before, but this… This is a thing of beauty. A work of art.

renovo_road_sm.jpg

renovo_1_sm.jpg  renovo_4_sm.jpg

renovo_3_sm.jpg  renovo_2_sm.jpg

This bike was produced by Renovo Hardwood Bicycles, where else, but in Portland, Oregon. “Wood is natures carbon fiber” they say. They hand pick hardwoods for their frames, and use a CNC machine for shaping & hollowing out the four pieces that comprise each main triangle, and bonded finger joints where the pieces intersect and the halves are joined in the middle.

They call the frames “heirloom quality”, and I’d have to agree. I don’t know how well they ride, but my guess is that they are as stiff yet supple as Renovo claims. And this is something you’d definitely want to bequeath to your kids, and they’d love to inherit.

renovo_inside.jpg

renovo_dougfir_sm.jpg

renovo_city_sm.jpg

Semper Velo

I’d like to take a shot at building a wood frame bike like this, although I couldn’t match Renovo’s build quality. The finger joints would be the difficult thing to reproduce with the tools I have on hand, but it might be possible to use lap joints at the three main joints, with the wood forming gussets at those joints as well. Three layers of overlapping 5″ wide, 1″ thick planks in four sections to form the triangle might just work… Build a solid prototype from something soft like Douglas Fir to see how it works, then go to a hardwood with hollow tube centers… Even if it didn’t work as a bike, it’d make a great wall decoration. This could be fun!

The Plywood Bike

Friday, May 23rd, 2008

The boys and I are still planning on building a rowbike of some kind — at least I am, but they’re getting a little impatient wondering when we’re going to get started. I’ve been trying to source cheap/free frame materials and trying to figure out in my head how to construct the thing, and think I’ve come upon an idea that will finally get this project rolling… build the frame out of plywood.

plywood_bike.jpg

Plywood construction in bikes isn’t a new idea at all; I found plenty of links online from people who have gone through similar projects, apparently with a decent level of success. This site is a build diary of sorts where a number of students built recumbents using a laminated plywood & foam sandwich construction… Very cool.

One other site I found that’s worth mentioning is the manytracks.com Woody Project. There he took stock bike parts, made some modifications to them, built a frame from lumber & plywood, and it looks like it’d work.

I really like the plywood/foam sandwich construction for the rowbike concept because you don’t have the twisting that happens on a pedal bike in the area of the bottom bracket; all the torque in a rowbike is linear. Sounds like a match made in heaven for a guy with few welding skills and less welding equipment, but wields a pretty mean scroll saw.

That same group also built recumbent bikes using carbon fiber a couple of years later; perhaps that’ll be our next garage project…

Sioux Falls Bike To Work Day — May 16, 2008

Thursday, May 15th, 2008

08b2w_400.jpg

Tomorrow is the 7th Annual Sioux Falls Bike To Work Day. The electric is ready to roll, so I’ll be there, even if it is a long way out of my way. Who can pass up free pancakes?

b2w1_poster.jpg

The Coolest Bike. Ever.

Tuesday, March 11th, 2008

As the number 8 kid in a family of 9, I rarely got anything new. Most of it was hand-me-downs from one of the older siblings. There were exceptions though; Mom worked at the J.C. Penney store downtown when we were kids and got in on some great deals, and we reaped the windfall from that at Christmas and birthdays.

One notable win for me was the bike I got one year. I don’t remember if it was a birthday or Christmas or what, but it was the coolest bike ever.

swinger_lr.jpg

It had everything a bike needed for a kid in his early teens; chopper styling, banana seat, racing-style handlebars, red line racing slick on back, 5 speeds — and not just 5 speeds, but 5 speeds with a stick shift! — a parking brake… All I could saw was “Wow!” I was so excited I said it backwards too; “!woW”

Mom saved everything. With the exception of those things that Dad didn’t think we needed to keep and Mom was unable to hide from him. While the bike probably didn’t fare well under Dad’s care during our 1978 move, I’m thankful that the Assembly Instructions and Service Manual for the Model 3-1124A Foremost 20″ Eliminator Mark II – 5 Speed bike remained in Mom’s care. It was one of the things that Mom gave to me years ago. I had it tucked away in some old papers & photos, and came across it again the other day. Brings back loads of memories.

Like the time that Jamie and I hacksawed the forks off a neighbor’s junk bike sitting in the alley, then jammed the fork ends of this bike. The forks came off a 27″ bike, and the only thing holding the forks on was friction. Worked fine while we worked on it and it wasn’t moving. Then I took it for a little ride; things went ok until I hit a bump in the sidewalk. The results were predictable. It amazes me that I didn’t do more damage to my head back then, before anyone even thought of wearing a helmet while riding a bike.

Then there was the time all the neighborhood kids were pretending to be Evel Kneivel with homemade ramps, jumping over other neighborhood kids brave enough to lie on the sidewalk behind the ramp… I don’t remember ever doing well at that, probably because few kids were brave enough to let me jump over them — I wasn’t known for a slim figure or great athletic skills back then, plus this Swinger bike I had probably weighed in at 50 pounds or so. But dang, it was cool.

I wish I could find a color photo of it, but a half hour of Googling didn’t get me anywhere but this close. I think the frame and the seat were yellow, with some psychedelic thing going on with the chainguard. I did learn that that style of bike has come to be known as “musclebikes”, which is both apt and interesting.

If anybody stumbles across this and has a photo of one, please please please drop me a line. Or at least leave a comment.

The Bamboo Bike

Sunday, February 24th, 2008

I’ve long wondered if building a bike frame from bamboo or some other wood species would be practical… I guess so, because Calfee Design has been doing it for a while now.

calfeebamboomtb.jpg

What it comes down to is having a good set of lugs is the main thing — that sets the stage for getting all the components in proper alignment and the proper position. The main job of the tubing is to connect the lugs with a mix of rigidity and suppleness for the degree of performance and comfort you want, whatever material is used. Calfee uses carbon fiber lugs (or hemp fiber, “for the all-natural look.”)

bamboocrosshempseatlug.jpg

Very, very cool idea. A little expensive, and a little quirky, but very cool.

The AutoCanoe

Sunday, August 26th, 2007

Here’s another unique pedal-powered machine; the AutoCanoeTM.

autocanoe_lr.jpg

The Autocanoe Is a Pedal Powered Amphibious Recumbent Tricycle and a Roadable Pedal Canoe! The configuration is that of a Recumbent Tricycle with the two forward wheels driving and the single rear wheel steering both on land and in the water. It can travel over the road and through the water with comfort and grace. Transitions from land to water and back are accomplished smoothly and seamlessly without leaving your seat. On the road it is stable and secure. On the water it is tractable and relaxing. This human powered vehicle appeals to bicycle enthusiasts as well as wooden boat fans.

autocanoe_land.jpg

It was built by some guy in Washington state; he thought it was a great enough idea that he trademarked the name and is selling plans for $30 a pop. The thing looks like it’d be kinda fun on the water, but getting anywhere on land would be difficult. It’s got to weigh a ton, and can’t be very maneuverable (or very fast). Look at that front overhang; you’d almost have to build a steel plate into the prow of the thing for all the approaches you’d be smacking into.

The Free LaFree

Friday, August 17th, 2007

I’ve been planning to buy an electric conversion kit for one of my bikes for a while now, and finally got the money and the CFO’s blessing last week, and ordered one. It’s due to arrive on Saturday. But that’s another story for another post, because Fortune smiled on me tonight.

Ian had a flat on his bike, so we stopped by Spoke-n-Sport to pick up some tubes tonight. I had emailed Chad, the owner, earlier asking about ebikes, so he knew I was interested. He was there tonight & asked if I had received the email he sent about the two Giant LaFree electric bikes one of his customers was looking to sell. I had seen the email, but hadn’t contacted the owner about them because I had already decided on the hub motor kit. Good thing, because the owner had bought new bikes and traded in the old ones. Chad wasn’t sure how much work it was going to be to get them running again — the owner said that one of them had a major problem but wasn’t sure about the other — so he was just looking to get rid of them. He said that if I didn’t want them he was probably just going to dump them. So, being the pack rat scavenger that I am, I couldn’t say no.

lafreesportlb.jpg

The bikes look like they’ve spent more time in the garage than on the road; a little dusty, but very little wear on anything. The burgundy one is missing the bottom plastics, and by turning the crank I can tell that that’s the problem child. The silver one seems to be ok. I plugged the batteries in, and they appeared to be charging; so far so good. Then, on a whim, I check the batteries just before bed, and one is showing a green light — charged. So, on another whim I pop the battery into the silver bike; nothing. Pop it into the burgundy bike & fiddle with the key and I get what sounds like an error beep and one LED lit on the battery level indicator. Pop it back in the silver, fiddle with it’s key, and get full battery lights! Cranking on the throttle doesn’t do anything, so on another whim I roll it to the driveway & hop on. And whaddyaknow! It works!

This is the first time I’ve ridden an electric bike, and the first time since 1986 that I’ve ridden any 2-wheeled conveyance that isn’t powered by me, so it was great having the wind in my hair again. I’m glad it was 11pm; the darkness hid my ear-to-ear smile from the neighbors. The ride was great. Went around the block a couple of times & discovered that the motor only engages when the pedals are turning. You don’t have to be pushing to get it to engage, only a token spin is required. And because the motor is ahead of the crank, it drives the chain, which also uses a standard 7-speed freewheel; that allows the motor to work in conjunction with the gears. Gear down to go up hills, and gear up for the flats. Pedal harder to give the motor some assist to go a little faster and get a little more life out of the batteries.

I couldn’t be more pleased to have a working bike without having to fix it. The other bike I’ll keep around for scavenging or selling parts. The frame may one day be incorporated into a hub-drive electric, but that’s gonna take some work. Especially getting rid of the girl frame look. Lessee… a tube across the top and a plastic fairing in between? That might be a start.

The VogaBike

Tuesday, July 31st, 2007

A couple of weekends ago I bumped into something online that made me dig up some sketches I’d made years ago (1985 or ’86 I think). Back then I was wanting to build a record-breaking human-powered speed machine. I reasoned that the pedaling action on standard bikes was less than efficient, but the rowing action would allow the power of the legs, back and arms to work in unison to generate the horsepower to scoot along at much higher speeds. Of course, in rowing there is a return stroke that nullifies some of the efficiency gains, but I think that putting the back and arms into the mix more than compensates for the momentum loss in the return stroke.

Back then, the incentive for the project was a contest promoted by a magazine (can’t remember which) that offered a $10,000 award to the first person who could hit and sustain 60mph in a human powered vehicle. Being newly married (or about to marry… Can’t remember exactly), and about to quit my job to start college, that cash would’ve been great seed money. Unfortunately, life got in the way, and the prize money was claimed long before my ideas even got off my sketchbook.

I still think the rowing motion has a lot more potential for speed than pedaling, and I’d still like to revive the idea and build a row-powered bike, just for fun. Digging around a bit online led to the realization that my idea is not original, and others have actually built such creatures, some being mass manufactured & marketed. Of course, some embodiments of that idea are better than others, and some are just downright screwy. One of the better ones that Google brought to light for me is the VogaBike. This machine is truly brilliant. The Italian geniuses at VogaBike seemed to have come up with dead-simple solutions to a lot of the problems that I had encountered in trying to design a row-powered bike.

vogabike.jpg

So slick I just might have to borrow a few of their ideas. 😉

(more…)