18-T Pinion Gear (48-pitch) Set (fits 2.3mm shaft) $4.60 Brand TRAXXAS Product Number 7041 Stock 2 Add to Cart Share Facebook Twitter Google Plus Pin It Product Description 1/16 TRX4-M 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.