0? steel belt spooled onto a rayon base construction delivers the highest possible levels of grip, stability and control Engineered to meet the demands of today's powerful high-performance sportbikes and naked muscle bikes Continuous transition from center to shoulder equals smooth, predictable performance Stunning tread pattern to match today's sportbikes Reduced kickback under hard acceleration Positive feedback at maximum lean angles Excellent grip in dry and wet conditions (W)-rated for speeds of 168+ mph Ideal occasional track day tire Excellent braking feedback Sport radial tire. TIRE SPT ATCK 190/55ZR17