Bel-Ray Thumper Racing Synthetic Ester Blend 4T Engine 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.
Meets API SN and JASO MA2 requirements.
Suitable for air-cooled/liquid-cooled 4-stroke engines and wet clutches.
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Synthetic ester blend for racing engines
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Maximum horsepower and consistent clutch performance
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Wear protection for valve-trains, rings, cylinders and pistons
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For air-cooled/liquid-cooled 4T engines with wet clutches
