Normal lubrication not required No time wasted cleaning the lube spatter from your bike More power to the wheel Money savings on lube, fuel consumption and bike cleaners Environmentally friendly For medium and small displacement motorcycles Tetrahedral Amorphous Carbon (ta-C) coating on the bushings and rollers Combines high hardness with a low coefficient of friction Reduces energy dissipation and increases efficiency in the drive Sprockets must be made of steel, but special coatings not required. CHAIN 520 HPE 110 LINKS