Join Date: Oct 2004
Location: Berkeley california
Bikes: less than I use to,, more than I need
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for a really simples gearbox sistem, and the G-Boxx site
for some addicional ideas in temrs of gearboxes, most of this can be modified to use belts, but chains still more efficient..
also check Nicolai
since they are at the fore front of development (the first 3 bikes on the top have gearboxes running out of their bottom bracket.
Here is a small photo gallary
gatter about diferent alternatives
and here are some examples like the petespeed tranny.
a planetary gear box with 14 steps
made by Rolloff in germany.
and here is a gallery with NIcolai bikes
were if you pay attencion you can see there evolution and a sample of them, please don't start with the "Why the cost so much" crap...they do but someday they will be a lot cheaper
Hope this helps...Oh Honda is making their own gearbox and is suppose to work like a CVT but nobody really know so far..that will be great if can be made efficient, bulletproff and cheap.
Last edited by ricardo kuhn; 10-05-05 at 07:17 PM.