Michelin Pilot Power Rear Tire - 160/60ZR-17/-- Progressive handling even in extreme situations; offers superb feedback at the limit and maintains stability under hard acceleration. Tubeless high-performance radial for track or performance street riding offering unprecedented lean angles up to 50.6? on dry pavement and 41.9? on wet pavement. Grooved area less than 12% of tread pattern for phenomenal cornering adhesion. (W)-rated for speeds in excess of 168 mph.