Quote:
Originally Posted by jackbauer
The bike's stock ratio is 2.87:1 with a 15 tooth on the engine and 43 tooth on the rear.
I can achieve a 3.58 ratio by keeping the stock rear sprocket and going to a 12 tooth on the motor.
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A smaller front sprocket will make the chain rub on the swingarm - some bikes will have a piece of rubber on the front end of the swingarm to keep this from happening as the suspension works.
12 is tiny.
I'd rather go up some teeth on the rear, than going down more than 1 on the front.
Don't run a new chain over worn sprockets for very long - it'll wear out the chain faster.