Formulated for high-performance V-Twin Sportster transmissions and primary chain cases Recommended for use in '71 and newer XR and XL H-D« models Unsurpassed extreme pressure additives and surface active chemistry allow smooth shifting under peak loads and RPMs Ensures optimal clutch engagement, facilitating smooth shifts and enabling maximum power High film strength provides excellent wear protection and durability. OIL V-TWIN CHAIN/GEAR QT