This is a 22-tooth 32-pitch pinion gear for the Traxxas E-Maxx truck. This is the gear which is attached directly to the motor.
Features: Machined steel and designed for a 3mm shaft
Requires: Assembly onto an E-Maxx truck and use 1.5mm hex wrench to tighten set screw
Note: This gear is only one of two which are used on the E-Maxx dual motor set-up