ALL AROUND ADVANCEMENT Zipp’s legendary speed weapon, the 404 Firecrest, is better than ever. This go-to rim-brake wheelset is, for the first time, tubeless ready. That means you can run reduced tire pressure for reduced rolling resistance and increased cornering grip and compliance without the risk of pinch flats. This wheelset’s 58mm rim depth is a classic that has carried athletes to victory in every kind of event and situation every triathlon distance, breakaways, field sprints and hilly finishes. Zipp’s ABLC Sawtooth Technology uses a complex dimpling pattern to improve aero efficiency. Zipp’s ShowStopper textured braking surface delivers unrivalled rim braking performance in wet or dry conditions. At the center of the 404 Firecrest Tubeless rim-brake is a versatile and durable new hubset, 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. FEATURES New Zipp graphics and cosmetic identity that scream speed New ZR1 hub is engineered in Germany with better seal design for improved durability and quicker response with 66 points of engagement Built with Sapim CX Sprint J-bend spokes Tubeless ensuring secure performance even when ridden at lower tire pressures All-around aero 58mm rim depth with proven crosswind stability ABLC Sawtooth dimple design helps manage air flow around the rim, and contributes to create a faster, more stable wheel Showstopper textured brake track delivers superior modulation and shortest stopping distances in wet and dry conditions XDR or SRAM/Shimano driver bodies Ships with QR end caps, quick release skewers Campagnolo driver body sold separately SPECIFICATIONS REAR - Size (wheels): 700c Rim construction: Carbon Tire compatibility: Clincher Tubeless Ready Rim depth: 58mm Surface texture: ABLC SawTooth Brake compatibility: Rim Rim - inside width: 19mm Rim profile: Symmetrical Rim finish: UD fiber, adhesive decals Color (Decal): Standard Nipple material: Aluminum Nipple anti-rotation: Sapim Secure-Loc Spoke type: CX-Ray - Black Spoke count: 24 Spoke pattern: 2 Cross Hub: ZR1 Disc Brake Driver body type: SRAM XDR Color (hub): Black Axle type (Wheels): QR 135 Axle material: Aluminum front & rear Bearings: Cartridge - Steel Driver Mechanism: 6 Pawls Leaf Spring Driver body material: Aluminum Max tire pressure: 125psi Max recommended rider weight: 250lbs FRONT - Size (wheels): 700c Rim construction: Carbon Tire compatibility: Clincher Tubeless Ready Rim depth: 58mm Surface texture: ABLC SawTooth Brake compatibility: Rim Rim - inside width: 19mm Rim profile: Symmetrical Rim finish: UD fiber, adhesive decals Color (Decal): Standard Nipple material: Aluminum Nipple anti-rotation: Sapim Secure-Loc Spoke type: CX-Ray - Black Spoke count: 18 Spoke pattern: Radial Hub: ZR1 Disc Brake Color (hub): Black Axle type (Wheels): QR 100 Caps (dia. 19mm) Axle material: Aluminum front & rear Bearings: Cartridge - Steel Max tire pressure:...