Red Line® Sportster 80W Primary Case Oil with Shockproof® is popular for Sportster® V-Twin transmissions, 65cc, 85cc, 125cc, and 250cc two stroke motocross transmissions, as well as shifter kart gearboxes, and CRF transmission cases. ShockProof® features microscopic solid medium to provide cushioning between gear teeth, while maintaining lower drag. Provides consistent shifting and wet-clutch operation.
Click here for Red Line Oil Product Finder for my vehicle