This pinion gear is constructed of hard anodized chrome steel, it is 48-53HRC certified. You can get the energy you need for the vehicle through changing pinion gear. With the same outside gear, you can improve your pinion gear (within allowable range) getting various torque and speed. (the reduced the T count, the larger the torque; the bigger the T count, the quicker the speed.)
Specification: Bore Diameter: 5mm / Modulus: 0.8mm / metal Pinion: 40CR
Applications: 1/8th monster like E-MAXX, E-REVO, SUMMIT etc.
