Bel Ray - Thumper Racing Friction Modified 4T Engine Oil 10W-40
Bel Ray Thumper Racing Friction Modified 4T Motor Oil is a 4-stroke motorcycle racing oil formulated specifically for motorcycle applications using separate engines and transmissions. Friction modifiers reduce engine temperature, increase horsepower and extend engine life. Suitable for air-cooled/liquid-cooled 4-stroke engines.
- Reduced cylinder and ring wear
- Controls sludge and varnish formation
- Keeps ring lands and grooves free of carbon build-up
- Shear stabilizer provides superior lubrication and film strength
- Reduced energy to turn the engine means more power to the rear tire
Note: Do NOT use in wet clutch apllications.