BUY NOW ONLINE FIND A DEALER NEAR ME Big Twin Transmission Oil is a multi-grade 4-stroke V-Twin transmission oil formulated for sliding contacts of gears in heavily loaded 4-stroke transmissions. It provides superior anti-wear, smooth shifting and reduces gear noise. Formulated for motorcycles with separate transmissions Wear protection extends gear life Quiets gear whine and improves shifting For Big Twin, air-cooled/liquid-cooled transmissions
