Zipp: ALL AROUND ADVANCEMENT 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.FEATURESNew Zipp graphics and cosmetic identity that scream speedZR1 DB hub is engineered in Germany with better seal design for improved durability and quicker response with 66 points of engagementBuilt with Sapim CX Sprint J-bend spokesTubeless ensuring secure performance even when ridden at lower tire pressuresAll-around aero 58mm rim depth with proven crosswind stabilityABLC Sawtooth™ dimple design helps manage air flow around the rim, and contributes to create a faster, more stable wheelCenter locking rotor interface. Lockring is includedXDR™ or SRAM/Shimano driver bodiesShips with 12mm front and rear end capsCampagnolo driver body sold separatelySuperior modulation and stopping power of disc brakes SPECIFICATIONSOrientation (wheels): RearSize (wheels): 700cRim construction: CarbonTire compatibility: Clincher Tubeless ReadyRim depth: 58mmSurface texture: ABLC DimplesBrake compatibility: Disc (Center Lock)Rim - inside width: 19mmRim profile: SymmetricalRim finish: UD fiber, Impress technologyColor (Decal): StandardNipple material: AluminumNipple anti-rotation: Sapim Secure-LocSpoke type: CX-SprintSpoke count: 24Spoke pattern: 2 CrossHub: ZR1 Disc BrakeDriver body type: SRAM/Shimano RoadColor (hub): BlackAxle type (Wheels): TA 12x142Axle material: Aluminum front & rearBearings: Cartridge - SteelDriver Mechanism: 6 Pawls Leaf SpringDriver body material: AluminumMax tire pressure: 125psiMax recommended rider weight: 250lbs