The Robinson Racing Products Hardened 48 Pitch Absolute Pinion features 27 teeth and is built for popular Traxxas electric and nitro platforms. Robinson Racing's Absolute pinions are precision-cut from hardened metal for increased durability over standard pinions. The set includes the pinion gear and a set screw for installation. Features: 48 Pitch, 27 tooth configuration Hardened metal construction for extended wear life Includes set screw for secure motor shaft mounting Compatible with common Traxxas 2WD and 4WD platforms 7/7/26 cs