This pinion gear is composed of hard anodized chrome metal, it is 48-53HRC certified. You could get the capability you need for the automobile through changing pinion gear. With similar outside gear, you will improve your pinion gear (within allowable range) to possess different torque and price. (the paid down the T count, the more expensive the torque; the bigger the T count, the quicker the rate.)
Specification: Bore Diameter: 5mm / Modulus: 1.0mm / metal Pinion: 40CR
Applications: the Popular 1/8th off-road (buggy and truggy)