Exceptionally high-performance primary drive oil formulated with 100% triple synthetic oil with ESTER, Molecular polar bonding technology and boosted extreme pressure additives enables the oil to cling to metal parts under extreme conditions, Features a protective film that increases lubricity, reduces wear, and extends the life of gears, bearings, chains and sprockets, Engineered for Big Twin Harley-Davidson primary drives with wet clutch, Provides outstanding grip for wet clutches to help prevent slippage and chatter, Available in 1-quart bottles