Zipp’s 404 Firecrest Tubeless Disc-brake wheelset is a go-to speed weapon for any situation. Its aero and crosswind-stable 58mm rim depth is ideal for road races, time trial and triathlon, gran fondos, and endless training over all types of terrain. This wheelset features new Zipp cosmetics for that perfect pairing of speed and style. The 404 Firecrest Tubeless Disc brake is infused with technologies developed in our Indianapolis advanced development lab. Zipp’s ABLC™ Sawtooth™ Technology uses a complex dimpling pattern to improve aero efficiency. At the center of the 404 Firecrest Tubeless Disc-brake is a versatile and durable new hubset, the German engineered ZR1 DB. If you had to choose just one wheel for road riding and racing, the 404 Firecrest Tubeless Disc brake is a savvy and speedy choice.