Zipp’s 303 Firecrest Tubeless rim-brake wheelset is an all-around wheelset for a new era of road riding. It’s rich in heritage yet loaded with innovations. It’s as adept in the mountains as it is on rolling hills, windswept farm lanes, or ferocious field sprints. At Zipp, we never rest on laurels. This wheelset features a 19mm internal width and is tubeless-ready. That means you can run lower tire pressure for greater cornering grip and compliance with reduced rolling resistance without the risk of pinch flats. When it comes to pure speed, the 303 Firecrest Tubeless packs a serious punch. It’s lightweight with ABLC™ Sawtooth™ Technology, a complex dimpling pattern first developed for our top-level NSW wheel lineup. This technology helps to achieve the optimization of low aerodynamic drag and crosswind stability, which we call AeroBalance™. Zipp’s ShowStopper™ textured braking surface delivers unrivalled rim braking performance in wet or dry conditions. At the centre of the 303 Firecrest Tubeless rim brake is a new versatile and durable hubset, the German-engineered ZR1.
Key Features:
- New Zipp graphics and cosmetic identity that scream speed
- The new ZR1 hub is engineered in Germany with a better seal design for improved durability and quicker response with 66 points of engagement
- Built with Sapim CX Sprint J-bend spokes
- Tubeless ensures secure performance even when ridden at lower tire pressures
- Versatile 45mm rim profile that’s fast, stable and versatile
- ABLC Sawtooth™ dimple design helps manage air flow around the rim and contributes to creating a faster, more stable wheel
- Showstopper™ textured brake track delivers superior modulation and the shortest stopping distances in wet and dry conditions
- Ships with QR end caps, quick-release skewers
Specifications:
- Orientation (wheels): Front
- Size (wheels): 700c
- Rim construction: Carbon
- Tire compatibility: Clincher Tubeless Ready
- Rim depth: 45mm
- Surface texture: ABLC Dimples
- Brake compatibility: Rim
- Rim – inside width: 19mm
- Rim profile: Symmetrical
- Rim finish: UD fibre, adhesive decals
- Colour (Decal): Standard
- Nipple material: Aluminum
- Nipple anti-rotation: Sapim Secure-Loc
- Spoke type: CX-Sprint
- Spoke count: 18
- Spoke pattern: Radial
- Hub: ZR1 Rim Brake
- Colour (hub): Black
- Axle type (Wheels): QR 100 Caps (dia. 19mm)
- Axle material: Aluminum front & rear
- Bearings: Cartridge – Stainless Steel
- Driver Mechanism: 6 Pawls Leaf Spring
- Max tire pressure: 125psi
- Max recommended rider weight: 250lbs










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