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, Road

Wheel Size:

28"

Tyre Type:

clincher tyre

Number of Spokes:

24

Brake Type:

Center Lock Disc

Tubeless System:

Tubeless Ready

Technical Information - Rim:

Type:

Zipp Firecrest

Rim Flange:

hookless

Dimensions (ETRTO):

25-622

Inner Width:

25 mm

Outer Width:

30 mm

Depth:

40 mm

Valve Hole Diameter:

SV/Presta (6.5 mm)

Rim Material:

Carbon

Technical Information - Front Hub:

Type:

Zipp ZR1 Disc

Over Locknut Dimension:

12 x 100 mm thru-axle

Bearings:

cartridge (stainless steel)

Body Material:

aluminium

Technical Information - Rear Hub:

Type:

Zipp ZR1 Disc

Over Locknut Dimension:

12 x 142 mm thru-axle

Bearings:

cartridge (stainless steel)

Body Material:

aluminium

Freehub Body Material:

aluminium

Freehub Body:

6 pawls (66 engagement points)

Technical Information - Lacing:

Front Lacing Pattern:

2-cross

Rear Lacing Pattern:

2-cross

Spoke Type:

Sapim CX-Ray

Spoke Size:

270 mm/272 mm (front l/r), 270 mm/266 mm (rear l/r)

Spoke Material:

stainless steel

Nipple Type:

Sapim Secure-Loc

Nipple Material:

aluminium

Approved For:

Weight Limit:

115 kg total weight

Air 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 mm

Tyre 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 look
• versatile long distance wheelset for modern road bikes with tubeless and hookless rim profile
• lighter weight, 290 grams less than its predecessor, for agility and speed
• tubeless 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 tyre
• ultra-wide 25 mm rim profile creates a better transition to the tyre for fast on and off-road performance
• 40 mm depth makes the wheel light and aerodynamic in every situation
• ZR1 DB hub (manufactured in Germany) with revised seal design for improved durability and faster response
• aluminium axles
• front 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 separately

Technology:

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 decals
• Hubs: black
• Spokes: black
• Nipples: black

Models:

28" set (front 12x100 + rear 12x142) Shimano:

Freehub:

Shimano Road

Gearing:

8-/9-/10-/11-/12-speed

Note:

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 12x100 + rear 12x142) SRAM XDR:

Freehub:

SRAM XDR

Gearing:

11-/12-speed

Note:

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 lockrings
• 1 x cassette spacer (Shimano rear only)
• 2 x valve core removers
• 2 x tubeless rim tape (pre-installed)
• 2 x tubeless valves (pre-installed)