Product:A-ONE Ultra High Performance Radial Tires Description: 1.Center Straight-ling rib The continuous grouding on the road helps straight running stability at High spee.excellent steering response in unexpected hangdling. 2.The cured conversion of running directional groove edge.The curved conversion from the edge spot of groove on running direction.Grounding pressure distrivution of block. 3.Arrangement of the variable pitch 5 optimized sizes of tread block can disperse and reduce noise from the tire.It realizes the quiet riding. 4.Running direction groove.The optimized 4/3 grooves enhance both .The performance of drainage on the wet road and the efficiency of high speed driving by reducing water pressure on the grounding spot. 5.Low rolling resistanc.