With 75 years experience and multiple championship successes you can be sure that Rock Oil knows a thing or two about oils!Rock Oils `GRO Gear Oil` is one of their `flagship` oils, this premium mainly synthetic oil has been designed for all racing and high performance motorcycle applications. It's thermally sensitive construction and extremely low drag characteristics offer a substantial reduction in friction and heat build-up. This ensures optimum performance while still providing fantastic levels of resistance to severe shock loadings that occur under the most extreme racing conditions.Recommended Application - Suitable for all high performance/race transmission systems where an SAE 10W40, 20W50 or 30W lubricant is specified.Available Size - 1Ltr