Looking for cooler operating temperatures, better shifting, less noise and less wear? Red Line's PowerPack includes our latest motor oil for motorcycles, V-Twin Transmission Oil with Shockproof, V-Twin Primary oil for the primary chain case, plus a bottle of Complete Fuel System Cleaner for Motorcycles. The Sportster and Buell kits include different gear oil (75W90 GL-5) since those engines have a different engine configuration.