Synthesis 2 Racing is probably the most advanced pre-mix 2 stroke lubricant currently available. Motorcycle engines can benefit from the advanced synthetic bases and additives to help prevent the problems of ring sticking, port blocking and cylinder wear. The phenomenal film and shear strengths give supreme protection and maximise the power and reliability of the engine. Synthesis 2 Racing can be used in all 2 stroke high performance engines and can also be mixed with all 2 stroke oils except castor based