Showing posts with label wooden rims. Show all posts
Showing posts with label wooden rims. Show all posts

30 March 2019

From The Barrel: How Does It Age?

The bicycle has a two-century history, if you regard the draisienne as its starting point.  During that time, two-wheeled machines operated by foot power have been made from all sorts of materials, including wood--as the draisenne was.

Every generation or so, someone or another "discovers" wood as a bike-building material.  Some advantages of the material are its relative light weight and stiffness.  They, of course, are the reasons why wooden bicycle rims were used, mainly on track bikes, for decades even when nearly all frames were made of steel.  They were banned because bicycle wheels, especially those on track bikes, are built with highly tensioned spokes and ridden with high-pressure tires.  The problem was that an impact or other problem that would cause a wheel with a metal rim to bend or fold, but remain intact, would cause a wooden rim to shatter and send sharp splinters flying about.

I imagine that wooden frames wouldn't have such problems, as the joints that hold them together wouldn't be as taut as bicycle spokes, or experience impact in the same way.  On the other hand, I have to wonder how a wooden frame would hold up in various weather conditions, especially extremes of wetness or dryness.

If nothing else, a wooden bike would have a "cool factor", as few other people have one.  That is probably the reason why it would be such a popular item at an event like the North American Handmade Bicycle Show, held in Sacramento two weeks ago.



This "Cooper Bicycle" was created by industrial designer and University of Kansas professor Lance Rake. To join the wooden beams, and for the dropouts, he cut pieces of steel with a waterjet.  The seat and headtubes were also steel, just like the ones found on a traditional frame.



What makes the bike unique--and inspired its name--is the source of its wood:  a wine barrel.  A barrel-maker was known as a cooper, and I don't doubt that more than a few of them made bikes, as blacksmiths and other artisans did.  

That bikes were made by such people, and from materials like the ones Rake used, is the inspiration for a vision of his.  He wants to sell Cooper bikes, he says, but he is also interested in making plans and patterns available to local artisans "so we can make bikes from local resources."

Does he have plans to use his machine on a wine-tasting bike tour in, say, California or France or Italy?  "I hate to admit it, but I'm more of beer and whisky drinker," he confesses, "but my wife is into Red Blends."  Could a tandem be in the works?

25 February 2018

A Rim, Maybe. A Whole Wheel...

Mavic introduced its alloy rims in 1920.  Until then, cyclists had two choices in rim material--steel or wood.  Most, of course, opted for the latter because it is much lighter.  

Interestingly, alloy rims were banned from the Tour de France until 1934, when Antonin Magne rode a pair of Mavics that were painted in wood colors.  His secret wasn't revealed, of course, until after he won the race.  Then, Mavic duraluminum rims became a staple of the peloton.  

As alloy rims became lighter and more durable, other riders, from road racers to tourists, used them because they worked better and lasted longer than wood rims when used with caliper brakes.  Track racers, however, don't use brakes and continued to ride wood rims until the 1950s, when they were banned because they tended to shatter--sending splinters flying hither and thither--when crashed.  Such mishaps were all the more likely on track wheels, which are tensioned tighter and ridden with the highest-pressure tires.

I have ridden wooden rims and enjoyed their resilient yet responsive ride.  I had to wonder, though, how much of that "feel" had to do with the tubular tires that were glued to the rims. (You pretty much have to ride tubulars if you ride wooden rims!)  I would never buy them, though, because just about all of my riding these days (even on my fixed gear) is done with brakes and because wooden rims have to be treated with more TLC than metal or carbon-fiber rims.

One thing I haven't seen is a whole wheel made of wood.  That is, until I came across this: