Zipp 303 Firecrest Carbon Tubular Wheels Challenge Limus PRO series CX 33mm. Tires and SRAM brake rotors included. Wheels were raced for two CX seasons, so 10-12 races. Tires were only race 2x, like new. Hubs are in great condition and spin like new. Skewers not included. There are some blemishes on the Zipp stickers on the wheels. No scratches or dings in carbon.