Traxxas direct replacement clutch gear for the Traxxas Nitro 4-Tec. Product Information FEATURES: Black Steel Construction INCLUDES: One Gear REQUIRES: Traxxas Clutch Bell SPECS: Length: 6 mm (0.243") Diameter: 17 mm (0.675") Teeth: 15 Product Information This is a direct replacement clutch gear for the Traxxas Nitro 4Tec. FEATURES: Black Steel Construction INCLUDES: One 16 tooth gear (standard) REQUIRES: Installation into vehicle SPECS: Diameter: 3/4"