The motor gear series includes 2 major types of Pitch Pinion — the 48 Pitch Pinion and the 64 Pitch Pinion. The 48 Pitch Pinion is available from 15 teeth to 38 teeth. The 64 Pitch Pinion is available from 17 teeth to 52 teeth. The Yeah Racing Aluminum Motor Gear are made from 7075 high quality aluminum with titanium coated surface.
