Made with 4140 carbon steel for good sturdiness and great duribility.
Accurate data measured for the spur gear, which improves the stability and makes the transmission more powerful.
Note: GPM motor plate + GPM or factory 36T spur gear: With HobbyWing 1621 motor, it is compatible with 14-8T pinion gears; With HobbyWing 1626 motor, it is compatible with 15-7T pinion gears. GPM motor plate + GPM 34T spur gear: Compatible with 17-8T pinion gears when used with HobbyWing 1621 or HobbyWing 1626 motor.