This pinion gear is constructed of hard anodized chrome steel, it is 48-53HRC certified. You can find the power you need the auto through changing pinion gear. With similar outside gear, you are able to enhance your pinion gear (within allowable range) to get various torque and rate. (the paid off the T count, the greater amount of high priced the torque; the larger the T count, the faster the rate.)
Specifications: 5mm Bore Diameter/0.53mm Modulous/40CR metal Pinion
Appplications: 1/10th SCT/Truck/Monster vehicle (easily put. TRAXXAS 1/10 SLASH 4*4)