Robinson Racing 2640 Speed Differential Gear 40T Arrma Infraction TRX-6 Parts Clamps to the stock motor

Clamps to the stock motor heat sink

21" (5mm) measured at tooth area

Does NOT fit the following Traxxas bodies

GTX shocks are built to handle the massive loads an X-Maxx generates

Robinson Racing 2640 Speed Differential Gear 40T Arrma Infraction TRX-6 Parts Clamps to the stock motorRobinson Racing 2640 Speed Differential Gear 40T Arrma Infraction The Robinson Racing 2640 is a speed differential gear featuring a 40 tooth count, designed specifically for the Arrma Infraction. Speed gears like this one are built to adjust your differential's gear ratio for a particular driving style. This 40 tooth speed differential gear gives Infraction owners a specific ratio option for tuning their drivetrain's overall speed and acceleration