Author Topic: Gearing  (Read 71 times)

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Offline BCbud

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Gearing
« on: October 05, 2021, 06:50:03 PM »
Good day!

Could some one give ma a starting point for gearing for 17.5 motors ( pinion and spur )?

Thanks, Neil.
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Offline Blake

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Re: Gearing
« Reply #1 on: October 06, 2021, 03:31:05 AM »
Good day!

Could some one give ma a starting point for gearing for 17.5 motors ( pinion and spur )?

Thanks, Neil.

Hi Neil,

A rollout of 85mm is a good starting point.  Something like this would work:

(43mm tire x 3.14 x 45t pinion) / 72 = 84.4mm rollout

Blake