Thread: Which Speedo gear ?
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Old 05-04-2003, 07:35 AM
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Ken Oikawa Ken Oikawa is offline
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Here is an equation to calcualte the driven gear:


Driven gear teeth = (Drive gear teeth x Axle ration x Tire rev per mi)/ 1000
= (7 x 3.73 x 815)/1000 = 21.3 (driven gear teeth)
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