The tires are IFMAR standardised with the wheel hex offset. The tires function countersunk center area allows the wheel nut to keep deeper inside wheel. The tires are ideal for high-competition competition. They function internal reinforcement ribs to provide stability and resist deformation, yet they have been created from a flexible product to produce durability and withstand effects. The medial side related to wheel is aerodynamic for optimum performance. The tires was in fact designed to offer maximum traction. The tires feature a 12mm internal hex. Set of 2 (1 set)