High-strength pinion gear produced from tough 7075 T6 aluminum and particularly hardcoated for superior power, light-weight, and high durability. Developed on an original gear unit, all pinions work ultra-precise enamel shaping and ultra-true running for vibration-free procedure. Fine inside threading allows simple installation. Each pinion is okay etched with all the tooth amount for fast & effortless recognition. Fits GTXE cars.