This pinion gear is made from hard anodized chrome metal, its 48-53HRC certified. You can get the capability you will need the car through changing pinion gear. With comparable outside gear, you can actually improve your pinion gear (within allowable range) your can purchase different torque and price. (the paid down the T count, greater the torque; the greater number of expensive the T count, the faster the price.)
Specification: Bore Diameter: 5mm / Modulus: 0.8mm / steel Pinion: 40CR
Applications: 1/8th monster such as for instance E-MAXX, E-REVO, SUMMIT etc.