This pinion gear is made from hard anodized chrome metal, its 48-53HRC certified. There is certainly the power you may need the vehicle through changing pinion gear. With comparable outside gear, you'll be able to raise your pinion gear (within allowable range) to have different torque and price. (the paid off the T count, the greater number of high priced the torque; greater the T count, the faster the price.)
Specifications: 5mm Bore Diameter/0.53mm Modulous/40CR metal Pinion
Appplications: 1/10th SCT/Truck/Monster car (efficiently put. TRAXXAS 1/10 SLASH 4*4)