Multi-plate clutches in an oil bath are common in motorcycles. Besides the lubrication points in the engine, the motor oil also supplies the transmission and clutch assembly. The JASO MA2 specification was created by the Japan Lubricating Oil Society (JALOS) for reliable clutch function and precise shifting in high-performance, high-torque motorcycles. All Moto Line four-stroke motorcycle motor oils in their various viscosities currently hold the key JASO MA2 approval, meaning they meet the cycle manufacturers’ strict specifications.