Bel-Ray Thumper Racing Synthetic Ester Engine Oil Bel-Ray Thumper Racing Works Synthetic Ester Blend 4T Engine Oil 10W-60 1 Liter
- Thumper engines (single cylinder, multi-valve racing engines)
 - For use in all 4-stroke engines requiring an oil meeting the API SG/SH/SJ/SL/SM standards
 - For use in all 4-stroke motorcycles with or without wet clutches, including those specifying the use of a JASO MA/MA1/MA2 qualified oil
 - Use in all 4-stroke motorcycle engines with or without wet clutches
 - Superior anti-wear, reduced and ring wear, for longer bearing life
 - Superior deposit control; cleans deposits, controls sludge and varnish formation, keeps ring lands and grooves free of carbon build-up
 - High-viscosity stability; the shear stability provides superior lubrication and film strength, minimizes friction for maximum power
 - Smooth power transfer; prevents clutch grabbing for an easily controlled and efficient gear shifting and clutch operation
 - Made in the USA
 
- Developed for full works competition use and to withstand extreme racing conditions
 - Withstands the highest temperatures and stresses
 - Meets API SM and JASO MA2 specifications
 - Also suitable for air-cooled/liquid-cooled 4-stroke engines and wet clutches
 - Made in the USA
 
Product Note:
| Specification | Details | 
|---|---|
| Country of Origin | USA | 
| Size | 1 Liter | 
| Viscosity Grade | 10W-60 | 
| Country of Origin | USA | 
| Size | 1 Liter | 
| Viscosity Grade | 10W-60 | 
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