Gear: Specifications

First Gear and Differential Gear mm (inch) 0.05 - 0.33 (0.002 - 0.013)
Second Gear and Secondary Third Gear mm (inch) 0.18 - 0.51 (0.007 - 0.020)
Second Gear and Third Gear mm (inch) 0.05 - 0.25 (0.002 - 0.010)
Fourth Gear and Bearing Cone mm (inch) 0.17 - 0.42 (0.007 - 0.017)