Swiss oil giants Motorex have developed the racing line into a core group of products specific to every racers needs. The racing line represents the highest racing performance lubricants that the MOTOREX lab produces and uses and has created a whole new meaning for the term High Performance Racing Products .Motorex top speed 4T oils are synthetic 4-stroke high-performance engine oils for all demanding motorcycles and applications. With this MC (Molecular Converted) technology high-quality base oils are refined chemically and enhanced to achieve the performance level of fully synthetic oils. JASO MA approval ensuresthat the oil will work perfectly with wet multi-disc clutches.Motorex Top Speed has been especially developed for use in all motorcycles with medium to large engines, where a fully synthetic oil has not been expressly specified by the manufacturers. Meets the highest manufacturer s specifications.