Zipp 404 Firecrest wheels are better than ever, now featuring a Tubeless ready design that allows for reduced tire pressures and lower rolling resistance, combined with increased cornering grip and compliance without the risk of pinch flats. The 58mm rim depth is a classic size that has carried athletes to victory in every kind of event and situation – triathlon distance, breakaways, field sprints and hilly finishes. Zipp ABLC Sawtooth Technology uses a complex dimpling pattern to improve aero efficiency, combined with a versatile and durable new hub, the German engineered ZR1. If you had to choose just one wheel for road riding and racing, the 404 Firecrest Tubeless is a savvy and speedy choice.Item Specifications: Cassette Body Type: XDR, Defined Color: Black, Hub/Brake Compatibility: Center-Lock Disc, ISO Diameter: 622 / road / 29", Rear Axle: 12mm Thru x 142mm, Rim Material: Carbon, Tire Type: Tubeless Ready, Valve: Presta, Wheel Size: 700c,