Traxxas 3919 - 12T 32P Motordrev
Gear, 12-T pinion (32-pitch)/ set screw12-tooth pinion gear (32-pitch) fits 3.17mm motor shafts and includes set screw. Traxxas pinion gears let you fine-tune the performance of your Traxxas model. Changing gear ratios can help balance acceleration and top speed for different running conditions. Please consult your owner’s manual for more information on recommended gearing options for your specific model.