The tires are IFMAR standardised as a result of the wheel hex offset. The tires work countersunk center area permitting the wheel nut to keep much deeper in wheel. The tires are ideal for high-competition competition. It works interior reinforcement ribs to supply security and resist deformation. The medial component the wheel is aerodynamic for optimum performance. The tires happen designed to provide maximum traction. The tires work a 12mm inside hex. Yellowish color amount of 2 (1 set)