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Gear Ratio Calculation

Example:

  6th Gear Final Drive
Drive gear ZG1 = 46 ZA1 = 24
Driven gear ZG2 = 33 ZA2 = 70

i = Z2 : Z1 (Z1 = number of teeth on the drive gear, Z2 = number of teeth on the driven gear)

iG = gear ratio = ZG2 : ZG1 = 33 : 46 = 0.717

iA = axle ratio = ZA2 : ZA1 = 70 : 24= 2.917

itotal = total ratio = iG x iA = 0.717 x 2.917 = 2.091