Bel-Ray Racing 10w40 4 Liter

Thumper® Racing Synthetic Ester Blend 4T Engine Oil Combines high quality synthetic esters & highly refined mineral base oils with premium additives Formulated for single-cylinder multi-valve off-road & racing motorcycle & ATV engines Provides great anti-wear protection for valve-trains, rings, cylinders & pistons Extreme pressure additives to offer smoother shifting Maximum horsepower & consistent clutch performance Withstands extreme racing conditions Wear protection for valve-trains, rings, cylinders, and pistons For riders changing their oil 2-4 hours (mx bikes) or 3500-4000 miles (dual sport)