Zigzag groove design. Zigzag and trailed main grooves enhance the strong traction; Improve the drainage and anti-skip performance. Large slope tread grooves design provides excellent stone removing performance. 3D Steel Sheets: 3D interlaced steel sheets design. 3D interlaced steel sheets increase the grip ability, braking force and safety of driving. Close Shoulder: Coherent close shoulder design. Enhanced rid and coherent close block design on shoulder prevents the leaning-grind caused by heavy rigidity, and remain the high-speed turning agility at the same time. Irregular Pattern: Irregular pattern and multi-pitch design brings silence and comfortable ride.