This pinion gear consists of difficult anodized chrome steel, it's 48-53HRC certified. You will get the energy you will need for the vehicle through changing pinion gear. With similar outside gear, you are able to change your pinion gear (within allowable range) for various torque and rate. (the low the T count, the larger the torque; the more expensive the T count, the faster the rate.)
Specification: Bore Diameter: 5mm / Modulus: 1.0mm / Steel Pinion: 40CR
Applications: the favourite 1/8th off road (buggy and truggy)