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Thread: Help with Reedy 9.5 sonic
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Old 08-29-2012 | 07:56 AM
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racer1812
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I ran 87/21 with a 8.5 so with your 9.5 you might want to be in the 21-22...23 range for pinions, all depending on track size.

FDR..only matters if you're trying to compare gear ratios between vehicles that have different internal tranny ratios (Losi vs. AE)

SC10 guy talking ratios to an SC10 guy, there's no need to do the extra math.
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