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Without Limits
Zipps 303 Firecrest Tubeless rim-brake wheels are all-around wheels for a new era of road riding. Its rich in heritage yet loaded with innovations. Its as adept in the mountains as it is on rolling hills, windswept farm lanes, or ferocious field sprints. At Zipp, they never rest on laurels. This wheels feature 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 the pinch flats. When it comes to pure speed, the 303 Firecrest Tubeless packs a serious punch. Its 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 Zipp calls AeroBalance. Zipps ShowStopper textured braking surface delivers unrivaled rim braking performance in wet or dry conditions. At the center of the 303 Firecrest Tubeless rim-brake is a new versatile and durable hubset, the German-engineered ZR1.
Highlights
- 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
- Versatile 45mm rim profile thats fast, stable and versatile
- 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 - Campagnolo driver body sold separately
- Ships with QR end caps, quick release skewers
Specification
Specification | 00.1918.532.000 | 00.1918.532.001 |
---|---|---|
Suitable for | Road | Road |
Type | Rear wheel | Rear wheel |
Tire compatibility | Clincher | Clincher |
Tubeless Ready | yes | yes |
Tire size | 28'' | 28'' |
Brake compatibility | Rim | Rim |
Rim construction | Carbon | Carbon |
Rim profile | symmetrical | symmetrical |
Rim depth | 45mm | 45mm |
Rim inside width | 19mm | 19mm |
Surface Texture | ABLC Dimples | ABLC Dimples |
Max. tire pressure | Max. 8.6 Bar / 125 psi | Max. 8.6 Bar / 125 psi |
Spokes | Sapim CX Ray | Sapim CX Ray |
Spokes count | 24 | 24 |
Spokes pattern | 2 Cross | 2 Cross |
Nipples | Aluminium, Sapim Secure-Loc | Aluminium, Sapim Secure-Loc |
Axle type | 10 x 130mm | 10 x 130mm |
Hub | ZR1 Rim Brake | ZR1 Rim Brake |
Driver menachnism | Pawls, 6 | Pawls, 6 |
Bearings | Cartridge Steel | Cartridge Steel |
Driver body | Shimano/SRAM 11-speed | SRAM XDR 12-speed |
Driver body material | Aluminium | Aluminium |
Weight | ca. 852g | ca. 842g |
Max. system weight | ca. 114 kg | ca. 114 kg |
Technologies
ABLC®
Revised ABLC® (Aerodynamic Boundary Layer Control) smooths airflow off the rim surface increasing the frequency of the vortex shedding, which creates smaller vortices, providing unmatched stability and control on even the windiest days.
Firecrest
Zipp`s proprietary Firecrest® rim rewrote the fundamentals of wheel making, resulting in improved aerodynamics, ride quality, wheel strength and stability in even the strongest of crosswinds. As a result, the entire Firecrest family of
wheels - from the 202 to 808 Firecrest - makes a bigger difference in more ways than ever including being laced into the new 77/177 hubset.
Firecrest technology, with rims that maintain a near-constant width almost all the way to the spoke bed, is the first aero profile that effectively controls airflow around the back half of the wheel. By moving the center of pressure - the focal point of side
forces on the rim - to its optimal location near the steering axis, Firecrest offers stable, predictable handling at every wind angle. As they discovered when developing the Zipp 303 to thrive under unforgiving conditions at the Spring Classics, a wider rim such as used in Firecrest wheels increases lateral stiffness for sprinting and cornering, yet offers greater vertical compliance for more control, comfort, and durability on rough surfaces.
Scope of delivery
- 1 x Zipp 303 Firecrest Carbon 28'' Clincher Tubeless road rear wheel (see item description for details)
- incl. Quick release and end caps