Specially-designed 4WD & 2WD back tires with 12mm interior hex. Perfect fit, and ideal for high-competition racing. The wheels are made from flexible material while still being durable against effects. The medial side of wheel is aerodynamic for maximum performance.
Unique options that come with the wheel are noticeable from the inside: reinforcement ribs to really make the tires as stable as you possibly can and eradicate deformation.