Red Line’s® V-Twin Primary Case Oil is designed specifically for 1984-to-present American Big Twin motorcycle primary chaincases with wet clutches. Designed to operate over a wide temperature range, this Primary Case Oil improves clutch operation while reducing wear and temperature. Where most synthetics are too slippery for clutch operation, this friction-balanced product is designed to provide less slip, smoother operation, and helps to apply more power in modified engines.
Red Line® V-Twin Primary Case Oil is available in quarts only. Order a case of 12 and save 10%! Call to order to receive the 10% savings.
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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.
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By far the best transmission oil you can buy for use in Big Twin 4, 5 or 6 speed street bikes - you’ll immediately notice smoother shifting and quieter operation! V-Twin Transmission Oil with ShockProof® provides unequalled protection for both stock and aftermarket American V-Twin transmissions. This product dampens transmission noise (reducing the notorious shifting “clunk” found in these gearboxes), dramatically reduces temperature, provides thicker oil films between gear teeth and completely resists throw-off. This stuff is magic in a bottle!Red Line® V-Twin Transmission Oil With Shockproof is available in quarts only.Click here for Red Line Oil Product Finder for my vehicle
