Tire - Sport Force+ EV - Rear - 190/50ZR17 - (73W) Featuring a special Multi Compound Tread Technology (MCTT) designed to quickly reach an adequate service temperature to ensure excellent grip at all lean angles, excellent grip as well as straight line stability even after prolonged and intense use, Has a limited content of silica to ensure adequate wet grip performance, Designed for public roads, ready to be used on the race track, For track use it is using tire warmers for at least 50 min @ 176°F and to follow the hot and cold pressure guidelines until you find pressure combination for your motorcycle, track conditions and riding style., for supersports, sports naked and sport touring motorcycles.