The Prime Carbon Disc Wheel is a rear race wheel that features a full carbon disc with a rim braking surface and is tubeless ready. Engineered to provide the greatest aerodynamic efficiency, power-transfer and outstanding crosswind stability, this wheel was created for top-level racing. Plus, it's tubeless-ready, which means it rolls faster, is lighter and provides greater grip than a standard clincher setup. Also, the tubeless setup eliminates the possibility of getting pinch flats.