BEL-RAY Thumper Gear Saver Transmission Oil is a premium 4-stroke transmission oil that has been developed for the unique demands of 4-stroke motorcycles equipped with separate engines and transmissions. Formulated with extra protection for gears and bearings subject to high torque loads of today"s powerful 4-stroke Thumper engines. Provides positive clutch engagement for better startswhile protecting highly-loaded gears from wear. Multi-viscosity free-flow formula Improved clutch cooling for longer life Smoother shifts 1 Liter (12 per case)