Bel Ray Thumper oil. Specifically engineered for 4 stroke
single cylinder, hard hitting and multi valve engines. Combines the
finest quality synthetic esters and refined mineral based oils
available. 15w/50 covers a broad range of riding with either air or
water cooled engines and provides constant wet clutch performance.
Absolute protection at it’s best. 1 ltr. KLR’s take 2 1/2 bottles.