This pinion gear is made of difficult anodized chrome metal, it's 48-53HRC certified. You can get the energy you would like for your car through changing pinion gear. With the exact same external gear, you are able to change your pinion gear (within allowable range) to get different torque and rate. (The lower the T count, the bigger the torque; the higher the T count, the faster the speed.)
Specification: Bore Diameter: 5mm / Modulus: 1.0mm / metal Pinion: 40CR
Applications: The Popular 1/8th off-road (buggy and truggy)
