IFMAR legal, specially-designed 4WD front wheels with 12mm internal hex. Perfect fit, and perfect for high-competition racing. The wheels are made from flexible material while still being durable against impacts. The side of the wheel is aerodynamic for maximum performance. Medium hardness. Special features of the wheel are visible from the inside: reinforcement ribs to make the wheels as stable as possible and eliminate deformation. Set of 5 pairs (10 pcs) for the price of 4 pairs. A great value pack. Fits all XB4
