ROCK OIL – gro
racing gearbox oil
GRO is a synthetic, advanced formulation motorcycle gearbox oil covering the 10W40 or 75W90 viscosity range. Designed to reduce friction and protect over a wide temperature range, GRO can operate from as low as -30°C through to the heat of racing whilst affording maximum anti wear protection and collect clutch lubrication (where used with an oil immersed clutch). GRO is an ideal choice for modern compact high power, high load multi speed gearbox applications. GRO has excellent thermal stability & superior resistance to oxidation.