smaller sprocket on rear wheel

GoldenMotor.com

RedB66

Active Member
Dec 28, 2007
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Sunshine State
Correct... although there is some discussions on how small you can go. I currently use a 28T sprocket (mainly for clearence issues). My tops speeds are around 37-39MPH.

I have used a 36T with excellent all around results.

These engines can only pull so much!! I've used a 25T but it was just too hard on the clutch.
 

bairdco

a guy who makes cool bikes
Aug 18, 2009
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living the dream in southern california
a lot of it depends on weight (yours and the bike's.) if you're 135lbs like me, and you're motor has a lot of torque (like mine) you can get away with a lot smaller sprocket than a guy who's 200+ with a stock motor.

eventually, a heavier guy can get to (almost) the same speed, but it just takes longer to build up the momentum.

i run a 30t, and it works great for everything, hills, etc.

ideally, you'd want a balance of speed and torque, and to do that, you'd have to experiment with different sprocket sizes, which means spending more money and time.