Similar to Red Line's Heavy ShockProof®, 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. It is compatible with petroleums and synthetics.

The viscosity characteristics allow the lubricant to resist throwoff and provide a film thickness similar to a 75W250 grade, while providing the same low fluid friction as an SAE 75W90.

A unique lubricant containing a suspension of solid microscopic particles as an extreme pressure agent--unique solid dispersion which cushions gear teeth to help prevent tooth breakage and allows the use of lower viscosities.

Acting like a liquid grease, the viscosity characteristics of ShockProof® allow the lubricants to resist throwoff and provide the protection of a greater film thickness with relatively light fluid viscosity, offering a "best of both worlds" balance of low drag and superior protection.

ShockProof® products work in a variety of differential and transmissions, however, should not be used with pumps, filters, and with small lines--these fluids are designed wet sump or splash type lubrication.