IFMAR legal size, specially-designed 2WD/4WD back tires with 12mm interior hex. The guts countersunk area had been redesigned to put the wheel nut much deeper. Precision fit, ideal for high-competition racing. Made from versatile, durable material to withstand impacts. The side of this wheel is aerodynamic for maximum performance. Moderate hardness. Unique options that come with the wheel are noticeable from the inside: reinforcement ribs to help make the tires as stable as you can and eliminate deformation. Set of 5 pairs (10 pcs) the cost of 4 pairs. Outstanding value pack. Fits all XB2 & XB4
