This pinion gear consists of hard anodized chrome steel, it's 48-53HRC certified. You will get the ability you would like for the car through changing pinion gear. With similar external gear, you are able to change your pinion gear (within allowable range) to get various torque and rate. (the low the T count, greater the torque; the bigger the T count, the quicker the speed.)
Specification: Bore Diameter: 5mm / Modulus: 0.8mm / Steel Pinion: 40CR
Applications: 1/8th monster like E-MAXX, E-REVO, SUMMIT, 1/10th SLASH 4*4 an such like.
