The Zipp 303 Firecrest Tubular wheelset for disc brakes represents groundbreaking innovations for performance-oriented cyclists. The wheels were designed to meet the demands of our sponsored athletes, suitable for road cycling as well as cyclocross, and for all other cyclists who appreciate the time-tested qualities of tubular tires. The 303 Firecrest Tubular for disc brakes features several key technologies from Zipp's top-tier NSW wheelset. These include the ABLC™-Sawtooth™ structures with small indentations that extend to the rim's peak. The rim has also been redesigned for impact resistance. These innovations enhance a wheelset that has proven to be world-class in two of the most challenging arenas – the spring classics and the cyclocross World Cup. Complementing the 303 Firecrest Tubular rims are the durable, versatile, and German-developed ZR1-DB hubs that spin at the center of the wheelset.