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qcitytile
09-19-2012, 07:43 AM
What is a good overall gear ratio for a jb with crf150r motor?

gdr8
10-22-2012, 10:22 PM
We run a 14/48, for MX racing. It seems to work well. Thinking about trying a 50 rear but so far no real need.
This is on our Cobra with a 150r motor.