High-strength pinion gear made from tough 7075 T6 aluminum and specially hardcoated for superior strength, light weight, and high durability. Created on a special gear machine, all pinions feature ultra-precise tooth shaping and ultra-true running for vibration-free operation. Fine internal threading allows easy installation. Each pinion is fine etched with the tooth number for quick & easy identification. Fits GTXE cars.

5.0mm motor shaft