The tires are IFMAR standardised utilising the wheel hex offset. The tires work countersunk center area which allows the wheel nut to stay further within the wheel. The tires are well suited for high-competition race. They work internal reinforcement ribs presenting stability and resist deformation, yet they're created from a flexible item to produce durability and withstand impacts. The medial part associated with wheel is aerodynamic for maximum performance. The wheels was indeed created to offer maximum traction. The tires work a 12mm inside hex. Set of 2 (1 set)