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Gearing question

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Im a newbie here but i was wondering if 14/38 sprockets would be good on a supermoto if all I'm doing is riding on the highway? How fast would it run?

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I do not know why you would select 14/38 when larger countershaft sprockets are available. There are 2 considerations when selecting final gearing - ratio and sprocket sizes. In general, you want to use the largest counter sprocket that you can for chain life.

So use 15 or 16 counter and an rear sprocket that gives the ratio you want. For example: 15/41 is about the same ratio as 14/38 and I believe is stock for the SM. And if you want to gear up then 15/40 or 15/39 are available combinations.

You can only go as fast as the motor has power to go. Just changing gearing will not necessarily make it go faster. I don't think a stock SM will go any faster than it will go with stock gearing.

Edited by Noble

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Absolutely what Noble said....you would be better off with 15/41 than 14/38 .

It's the same final ratio and you will have better swing arm clearance..straighter turns for your chain..marginally reducing chain drag and giving longer drivetrain life...

As speed increases ,opposing forces such as wind resistance prevents a stock engine from pulling peak power/rpm if the gearing is too tall....

Edited by CraigoDRZ400sm

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