The tires are IFMAR standardised with the wheel hex offset. The tires work countersunk center area allowing the wheel nut to keep more deeply inside wheel. The tires are perfect for high-competition competition. They work interior reinforcement ribs to present security and resist deformation, yet they've been created from a flexible product to help make durability and withstand impacts. The medial component concerning the wheel is aerodynamic for maximum performance. The tires was indeed built to offer maximum traction. The tires work a 12mm interior hex. Band of 2 (1 set)