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Old 01-01-2016, 12:10 PM
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leo leo is offline
Motorized Bicycle Elite Member
Join Date: Jul 2015
Location: southern wv
Posts: 229
Default Re: Engine won't go past 30MPH

IMHO, the best way is to let your local terrain will determine your gear ratio.

if you live in a flat area it doesn't matter, go with which ever you like best. the stock 44t is a nice "middle of the road" choice. (no pun intended)

i tried a 28, 32, 44, 50 and finally settled on a 56.
the smaller ones dramatically increase top end speed on level ground, but they DO NOT climb hills. even a moderate grade will eventually defeat them over a long incline.

gear for the terrain that you will actually be riding on.

my top speed on level ground is around 25-30 mph, with 29er wheels.
It will be "done" when it can climb trees, go 300 mph, and fire lasers from the headlights. Surface to air missiles would be nice too.
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