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Re: Need general drive train expertise
The motor Pinion is the gear on the motor, so you're able to choose from 11, 12,13,14 tooth gears, the x2 and x3 are the quantities as you can get the gearbox in 2 CIM and 3 CIM form.
My team only has experience with the Dog shifters so I can't really comment on Dog vs Ball.
The Spread Ratio is the ratio between your high gear and low gear, the larger this number the further apart your high and low gear are from each other. Which to use really comes down to your teams preference.
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