Tire - Diablo™ Supercorsa SP-V4 - Rear - 190/50ZR17 - (73W) Engineered to provide maximum performance both on road with road-specific tire pressures and on the racetrack with racetrack-specific tire pressures ( 33 psi front and 30 psi rear when tires are warm), Dual compound front and rear layout applied on state-of-art profiles combine outstanding racetrack performance with riding pleasure on road, Featuring the latest evolution of the patented FLASH* tread pattern designed to enhance homogeneous thrust at any lean angle