Wooden Splinter Bike dubbed "engineering marvel"

Friday, April 29, 2011

Posted by Sam Dunne | 28 Apr 2011  |  Comments (3)

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This blog is no stranger to wooden or, indeed, bamboo bicycles. The "Splinter Bike" by English craftsman Michael Thompson, however, is a very different animal. Barring a touch of glue and lick of paint, this beast is made entirely from wooden parts—not a nail, screw, nut or bolt in sight...not even a chain or rubber tyres.

Apparently the fruit of a friendly wager, Michael now hopes his creation will set a land-speed record for wooden bikes, raising money for charity Shelter Box, with friend James Tully at the salvaged broom-handle handle bars; perched on the wooden saddle.

The Splinter Bike's biggest achievement—making this a real engineering marvel—has to be the 128-tooth cog that replaces the need for a drivechain.

The bike has yet to be tested, owing to a difficulty in finding a suitably smooth surface to ride it on—but we'll be sure to keep you updated on how the bike holds up. Be sure to check out Michael's blog to see the bike coming together in the workshop.

Here's the stats:

Weight: 31 kg
Gear Ratio: 4:1
Cog: 128-tooth
Top Speed: 31 mph (estimated)

Frame: Birch Ply
Wheels: Birch Ply
Cog: Birch Ply
Axle: Ekki (hardwood)
Bearings: Ironwood
Handle Bars: Salvaged broom handle

Man hours for production: more than 1000
Amount James bet Michael that he couldn't do it: £1

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(via The Guardian Bike Blog)

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