This is a Tekno 15 Tooth Hardened Steel Mod 1 1/8th Clutch Bell. Tekno's hardened steel mod1 clutch bells can be used with Tekno RC’s line of V3 Brushless Conversion Kits for the Losi 8IGHT, Associated RC8 and others. These can also be used with any standard nitro 1/8th application. Package includes clutch bell and two bearings.