Showing posts with label Lance Rake. Show all posts
Showing posts with label Lance Rake. 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?

13 May 2017

A New Weave?

Carbon fiber bikes first appeared about four decades ago.  For two decades, they were mainly curiosities or status symbols; they were ridden (if they were ridden) mainly for record attempts or by those who simply had to have the latest equipment.



When Trek and other companies started to make carbon fiber bikes priced within range of the best steel and aluminum bikes, parts and accessories with the "carbon weave" pattern became as fashionable as snakeskin or leopard often are among the haute couture crowd. I remember seeing handlebar tape, saddles and even tires with the "carbon basket", as some of us called it.



Well, it turns out that carbon fiber isn't the only material that's woven when used in bicycle frames.  Interestingly, this material has many of the same qualities that doomed the early carbon fiber frames but make them attractive (not just in visual ways) to many cyclists today:  It is strong but still flexible, which allows it to be shaped in a variety of ways.  But it is also brittle, and--like early carbon fiber materials--needs to be supported by other materials.




The material in question is bamboo.  Industrial designer Lance Rake (You've gotta love that name!) realized that to make bamboo stiff enough, he had to cut it into thin strips, weave it and  laminate it to another material.  This is more or less how early carbon fiber frames were made:  They fibers were wrapped around, and bonded to another material, usually aluminum. 



Now, you're never going to believe what Rake is laminating his bamboo fiber to.  Wait for it:  carbon fiber.  In another interesting parallel with early carbon fiber-frames, Rake's bamboo-laminate tubes are joined into carbon fiber lugs.  Most of the early carbon-fiber frames were bonded into aluminum lugs.  



The bike Rake is holding in his hands is fitted with mid-level components and weighs about 19 pounds--more or less what a similarly-equipped carbon fiber bike would weigh.

Will the new "must have" bike accessories have a bamboo-weave pattern?  Depending on the accessory, it might actually look good.