Bel-Ray Thumper Racing Synthetic Ester Engine Oil

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: