Specially formulated, high performance, 100% triple synthetic motorcycle oil with ESTER. Engineered to handle and protect against high temperatures found in big air-cooled Twins. Molecular polar bonding technology enables oil to cling to metal parts, providing a protective film to help reduce wear at start-up. Exceeds requirements for Twins with separate clutches and primary cases found on Harley-Davidson models. Designed to provide outstanding grip on wet clutches to prevent slippage. High levels of ZDDP extreme pressure additives, combined with anti-oxidant and anti-foam properties. Recommended for use in H-D Milwaukee 8, Twin-Cam, Evolution, Sportster engines and primary case.