Red Line Atv/Utv Gearcase Oil This wet clutch compatible gearcase oil features Red Line's ShockProof technology that creates a defense around your gears, aiding in longevity and performance through lower drag. Features: ShockProof features microscopic solid medium to provide cushioning between gear teeth, while maintaining lower drag Provides consistent shifting and wet-clutch operation Popular for 65cc, 85cc, 125cc and 250cc two stroke plus CRFs and shifter karts