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Gear Ratio Calculation

Example:

  6th Gear Final Drive
Drive gear ZG1 = 45 ZA1 = 17
Driven gear ZG2 = 33 ZA2 = 62

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

iG = gear ratio = ZG 2 : ZG1 = 33 : 45 = 0.733

iA = axle ratio = ZA 2 : ZA1 = 62 : 17 = 3.647

itotal = total ratio = iG x iA = 0.733 x 3.647 = 2.673