MICHELIN PRO4 Endurance Bicycle Tire Dual-compound tread ensures exceptional resistance to wear and enhanced grip when leaning through corners The compound employed for the shoulders provides a very high level of grip on wet roads, while the compound used for the central part of the tread delivers greater protection against punctures and impact damage. The combination of the 110TPI casing and bead-to-bead breaker ply ensures outstanding resistance to perforation and contributes to the tire's remarkable durability