Bel Ray Thumper Racing Synthetic Ester Blend 4T Motor Oil is a 4-stroke motorcycle racing oil that combines the finest quality synthetic esters and highly-refined mineral base oils specifically engineered for today’s 4-stroke single cylinder, multi-valve racing engines. Provides maximum anti-wear protection for valve-trains, rings, cylinders and pistons. Delivers maximum horsepower while providing consistent clutch performance. Suitable for air-cooled/liquid-cooled 4-stroke engines and wet clutches.

Features:

• Reduced cylinder and ring wear
• Superior deposit control
• Shear stabilizer provides superior lubrication and film strength
• Prevents clutch grabbing for easily controlled and efficient gear shifting and clutch operation