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