ZIPP 303 Firecrest® Carbon Tubeless Center Lock Disc Wheelset

For the 303 Firecrest® Carbon Tubeless Disc Centre Lock wheelset, Zipp has optimised the 25 mm wide and 40 mm deep rim profile to reduce wind and rolling resistance for more speed on all surfaces.
Specifications:Application:Gravel, RoadWheel Size:28″Tyre Type:clincher tyreNumber of Spokes:24Brake Type:Center Lock DiscTubeless System:Tubeless ReadyTechnical Information – Rim:Type:Zipp FirecrestRim Flange:hooklessDimensions (ETRTO):25-622Inner Width:25 mmOuter Width:30 mmDepth:40 mmValve Hole Diameter:SV/Presta (6.5 mm)Rim Material:CarbonTechnical Information – Front Hub:Type:Zipp ZR1 DiscOver Locknut Dimension:12 x 100 mm thru-axleBearings:cartridge (stainless steel)Body Material:aluminiumTechnical Information – Rear Hub:Type:Zipp ZR1 DiscOver Locknut Dimension:12 x 142 mm thru-axleBearings:cartridge (stainless steel)Body Material:aluminiumFreehub Body Material:aluminiumFreehub Body:6 pawls (66 engagement points)Technical Information – Lacing:Front Lacing Pattern:2-crossRear Lacing Pattern:2-crossSpoke Type:Sapim CX-RaySpoke Size:270 mm/272 mm (front l/r), 270 mm/266 mm (rear l/r)Spoke Material:stainless steelNipple Type:Sapim Secure-LocNipple Material:aluminiumApproved For:Weight Limit:115 kg total weightAir Pressure (max.):5 bar or the maximum pressure indicated on the tyre sidewall (the lower pressure applies in each case)Recommended Tyre Width:from 28 mmTyre Type:The Firecrest 303 Tubeless Disc is approved for the use with tubeless and Tubeless Ready tyres only, due to the hookless rims. Please make sure that the tyre manufacturer’s approval is given for hookless rims. An inner tube can be used with a tubeless/tubeless-ready tyre which is compatible with hookless rims. Follow the installation recommendations of the tyre manufacturer.Features:new Zipp graphics for a speedy lookversatile long distance wheelset for modern road bikes with tubeless and hookless rim profilelighter weight, 290 grams less than its predecessor, for agility and speedtubeless made easy: optimised shape of the rim bed allows easy installation and removal without tools and without the need for a compressor to bead the tyreultra-wide 25 mm rim profile creates a better transition to the tyre for fast on and off-road performance40 mm depth makes the wheel light and aerodynamic in every situationZR1 DB hub (manufactured in Germany) with revised seal design for improved durability and faster responsealuminium axlesfront can be converted to 9 x 100 mm quick release or 15 x 100 mm thru-axle (end caps sold separately)rear can be converted to 10 x 135 mm quick release (end caps sold separately)TyreWiz tyre pressure sensor sold separatelyTechnology:Firecrest®
Through the pioneering use of software to analyse numerical fluid mechanics and the power of a supercomputer, Zipp is able to understand exactly what makes wheels go fast. Zipp then tests the most promising rim shapes in the wind tunnel and on the road. This process led to the creation of Firecrest rim technology, which allows the wheel’s airflow and centre of gravity to be controlled more effectively, resulting in better aerodynamics, better handling in crosswinds and an overall better cycling experience.

ABLC SawTooth™
This patented rim shape achieves what conventional aero wheels cannot: it simultaneously reduces aerodynamic drag and lateral wind forces, providing the ultimate AeroBalance™. In addition, the ABLC recesses ensure improved air flow. The result is lower aerodynamic drag and reduced lateral wind forces at any angle of attack. This is important because the steeper the wind angle, the larger the influence on the handling of the bike.
Colour Index:black:
Rims: black (carbon) with standard decalsHubs: blackSpokes: blackNipples: blackModels:28″ set (front 12×100 + rear 12×142) Shimano:
Freehub:Shimano RoadGearing:8-/9-/10-/11-/12-speedNote:Assembly of 8-/9-/10-speed cassettes on Shimano Road freehub bodies requires a 1.85 mm spacer.Manufacturer Number:00.1918.529.000 (front) + 00.1918.530.000 (rear)
28″ set (front 12×100 + rear 12×142) SRAM XDR:
Freehub:SRAM XDRGearing:11-/12-speedNote:A 1.8 mm spacer is required to mount XD cassettes on an XDR freehub.Manufacturer Number:00.1918.529.000 (front) + 00.1918.530.001 (rear)Contents:1 x Zipp 303 Firecrest Carbon Clincher Tubeless Disc Centre Lock wheelset (front and rear)2 x Center Lock lockrings1 x cassette spacer (Shimano rear only)2 x valve core removers2 x tubeless rim tape (pre-installed)2 x tubeless valves (pre-installed)