Availability: In stock

Advanced development defined: the 303 NSW Carbon Clincher wheelset by Zipp

Built on the foundation laid by Firecrest®, offering unrivaled crosswind stability and the most aerodynamically efficient rim design on the market, the 303 NSW takes it all to the next level. Like its siblings, 404 NSW and 808 NSW, Zipp’s top engineers in The Nest advanced development lab incorporated improved aerodynamics, industry leading braking performance, and reduced rolling friction to produce the lightest, highest performance 303 wheelset Zipp has ever made.
Light enough to fly up climbs, tough enough to excel in the cobbled classics, and with the industry's best available braking performance for the most technical descents, the 45 mm deep 303 NSW is built for a singular purpose: To be fast, everywhere.


Application: Road, Gravel
Wheel Size: 28" 
Tyre Type: clincher tyre
Number of Spokes: 18 (front), 24 (rear)
Brake Type: rim
Tubeless System: none

Freehub Body Compatibility:

Shimano Freehub: 8-/9-/10-/11-speed Shimano/SRAM (Road)
Campa Freehub: 9-/10-/11-speed Campagnolo
Note: Assembly of 8-/9-/10-speed cassettes on Shimano freehub bodies requires a 1.85 mm spacer.

Technical Information - Rim:

Type: Zipp X45NSW (Nest Speed Weaponry)
Dimensions (ETRTO): 17-622
Inner Width: 17.25 mm
Outer Width: 28.5 mm
Depth: 45 mm
Valve Hole Diameter: Presta (6.5 mm)
Material: carbon

Technical Information, Front Hub:

Type: Zipp Cognition™
Over-Locknut-Dimension: 9 x 100 mm quick release skewer
Hub Axle Diameter: 17 mm
Bearings: Swiss stainless steel
Hub Body Material: aluminium

Technical Information, Rear Hub:

Type: Zipp Cognition™
Over-Locknut-Dimension: 10 x 130 mm quick release skewer
Hub Axle Diameter: 17 mm
Bearings: Swiss stainless steel
Hub Body Material: aluminium 
Freehub Body Material: aluminium
Freehub System: Axial Clutch™

Technical Information - Lacing:

Front Lacing Pattern: radial
Rear Lacing Pattern: 2-cross
Spoke Type: Sapim CX-Ray / Aero
Spoke Size: 260 mm (front), 270 mm/268 mm (rear l/r)
Spoke Material: stainless steel
Nipple Type: Sapim secure-lock / external

Approved For:

Weight Limit: 113 kg, rider weight
Air Pressure (max.): 8.62 bars
Maximum Tyre Width: 25 - 50 mm*

* according to ETRTO


- XD compatible (SRAM 11/12-speed), freehub sold separately
- less crosswind side force
- allows faster cornering
- especially quiet, supple, and durable bearings


The Zipp NSW Series is a science, a philosophy and a mission to engineer the fastest, most stable and highest performance cycling components ever realized.Within the NSW Series, Zipp will develop and refine halo-level products with our most advanced technologies on an ongoing basis. The focus is on transforming innovative ideas into tangible gains in speed. NSW – for Nest Speed Weaponry – comes from the nickname “The Nest” Zipp engineers gave to the windowless, high-security advanceddevelopment lab in the corner of the Zipp factory. It’s where only the best fledgling ideas fly.

Zipp has employed Zipp’s ImPress™ graphics technology, which prints graphics directly on the wheel, to help allow the dimples to do what they were designed to do – help control vortex shedding, the rate at which air sheds off the wheel. Managing this is crucial to stability. ImPress graphics also give 808 NSW a distinctive stealthy look.

ABLC Sawtooth™
Zipp’s new Sawtooth dimple design consists of 12 nodes that are precisely clocked to start aerodynamic shearing at a rate of 50hz at a rider speed of 20mph. Sawtooth accomplishes this by inducing small sheet vortices that shed at a low magnitude, but at a higher natural frequency, thus decreasing the laminar bubble effect on the aerodynamically shielded side of the rim’s profile to further reduce high yaw drag and improve crosswind stability. That crosswind stability then imparts peace of mind when the weather turns south while saving watts that would have been expended while attempting to hold your line.

Zipp's industry leading silicon carbide Showstopper™ brake track continues to evolve and improve, providing unmatched stopping power and modulation regardless of weather conditions or the length of the descent.


- 1 x Zipp 303 NSW wheelset (front and rear wheel)
- 2 x Zipp Tangente Titanium quick release skewers
- 2 x pairs of Zipp Platinum Pro Evo brake pads
- 2 x Silca valve extenders
- 2 x Zipp tubes (700c x 20-28 mm)
- 2 x Zipp rim tape (700c x 20 mm)

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