Bel-Ray Thumper Racing Synthetic 4-Stroke Motor Oil #132640-P Size:10W-50 4 Liter provides consistent suspension protection for

provides consistent suspension protection for safer and more precise handling

and drain bolt crush washer

Uniquely formulated for optimal engagement and release

100% Biodegradable in its unused form

Bel-Ray Thumper Racing Synthetic 4-Stroke Motor Oil #132640-P Size:10W-50 4 Liter provides consistent suspension protection forBel Ray Works Thumper Racing Full Synthetic Ester 4T Engine Oil is a 4 stroke synthetic racing oil that has been developed for full works competition use and is designed to withstand extreme racing conditions. Full synthetic ester base oils withstand the highest temperatures and stresses which provide the ultimate 4 stroke motorcycle oil. Suitable for air cooled liquid cooled 4 stroke engines and wet clutches. Meets API SM and JASO MA2 requirements.