2T-R full synthetic is a low ash premix/injection oil especially engineered for tbi and tpi motorcycles. Using a combination of three ester groups, we have engineered a low viscosity full synthetic oil that is robust enough to protect even in the most demanding high temperatures, high rpm engines while maintaining a safe viscosity for injection systems. 2T-R is one of the cleanest burning synthetics on the market today, leaving nearly zero carbon deposits in the combustion process.