General description Zipp’s 303 Firecrest Tubular rim-brake wheelset is engineered for performance-minded cyclists, designed to excel in challenging conditions like Roubaix and Flanders. With a versatile 45mm rim depth and innovative construction for impact protection, this wheelset delivers exceptional speed and stability. The lightweight design incorporates ABLC™ Sawtooth™ Technology, optimizing aerodynamic drag and crosswind stability, known as AeroBalance™. The ShowStopper™ textured braking surface ensures outstanding rim braking performance in both wet and dry conditions. Technical specifications Orientation (wheels): Front Size (wheels): 700c Rim construction: Carbon Tire compatibility: Tubular Rim depth: 45mm Surface texture: ABLC SawTooth Brake compatibility: Rim Rim - inside width: n/a Rim profile: Symmetrical Rim finish: UD fiber, adhesive decals Nipple material: Aluminum Nipple anti-rotation: Sapim Secure-Loc Spoke type: CX-Ray - Black Spoke count: 18 Spoke pattern: Radial