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Old 01-15-2009, 11:00 PM   #9 (permalink)
MetroMPG
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Join Date: Nov 2007
Location: 1000 Islands, Ontario, Canada
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Blackfly - '98 Metro
Team Metro
90 day: 67.07 mpg (US)

ForkenSwift - '92 Metro EV
90 day: 125.37 mpg (US)

U.F.O. - '00 Insight
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oldpecan: a wheelchair motor would be a good choice since it's probably 24v, which means you won't need crazy RPM to get 12v out of it.

Quote:
Originally Posted by bikin' Ed View Post
My suggestion would be to get a smoother tire to enhance contact w/ the motor. My guess is that it would make it much more efficient.
A slick would definitely make it easier. The tire-side-contact of the generator hub is far from ideal. But the goal was to make do with stuff I already have, or could easily scrounge, and also to retain the bike's usability - pluck it off the stand and ride it up slippery, snowy hills if desired.

I mounted the motor/generator and did a test pedal tonight ... and blew out a 6v light bulb. Whoopsies.

Also posted details on how I made the stand: Building a pedal power bicycle generator, ghetto style - EcoRenovator

Goal for this weekend is to recharge my camera batteries... WITH! MY! LEGS! Woo.
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www.MetroMPG.com - fuel efficiency info for Geo Metro owners
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