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Old 07-22-2015, 03:08 PM
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wret wret is offline
Motorized Bicycle Elite Member
Join Date: Feb 2014
Location: Maryland
Posts: 263
Default Re: rim size and torque/speed

The final drive ratio is affected by the circumference of the drive wheel (2 x pi x radius). A 26" wheel has about 81.7" circumference and a 29" a 91.7" circumference, which is a 12% difference. Of course the other components (sprockets) could be adjusted to make the final drive ratios equal.
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