Shinko introduces a tread designed for serious sportbike riding with the new 010 Apex Radial. The 010 Apex radial rear features Zero Degree JLSB (Joint-Less Steel Belted) state-of-the-art technology for added stability and strength. Tread radius designed for enhanced high-speed cornering. Intermediate compound. W-speed rating (168 mph). DOT approved. Tire Specifications: Load / speed index: 69W. Recommended rim (inches): 4.50. Overall diameter (inches): 24.57. Overall width (inches): 6.34. Maximum load (pounds) / PSI: 716 @ 42 PSI. Construction: Radial.