This pinion gear is made of difficult anodized chrome steel, it's 48-53HRC certified. You will get the power you want for your automobile through changing pinion gear. With similar external gear, you are able to change your pinion gear (within allowable range) getting different torque and rate. (the low the T count, the bigger the torque; the larger the T count, the quicker the rate.)
Specification: Bore Diameter: 5mm / Modulus: 0.8mm / metal Pinion: 40CR
Applications: 1/8th monster such as for instance E-MAXX, E-REVO, SUMMIT, 1/10th SLASH 4*4 etc.
