The tires are IFMAR standardised with the wheel hex offset. The tires work countersunk center area enabling the wheel nut to keep much deeper inside wheel. The tires are ideal for high-competition race. They feature interior reinforcement ribs to provide security and resist deformation, yet they truly are made from a flexible item to provide durability and withstand effects. The medial side of the wheel is aerodynamic for optimum performance. The wheels were made to offer maximum traction. The tires function a 12mm internal hex. Group of 2 (1 set)