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Brand-New Bikes - First 2021 models have landed!
Zipp

Zipp 303 NSW Rear Wheel Carbon Clincher Tubeless XDR black (2021)

ID: 1226880
£1,496
Incl. VAT, free shipping
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Product Description

Zipp’s 303 Firecrest Tubular rim-brake wheelset offers key innovations for performance-minded cyclists. This is the game-changing wheelset designed to conquer Roubaix and Flanders. Retaining their versatile 45mm rim depth, 303 Firecrest Tubular rims feature construction designs for impact protection. When it comes to pure speed, the 303 Firecrest Tubular 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 unrivaled rim braking performance in wet or dry conditions. At the center of the 303 Firecrest Tubular rim-brake is a new versatile and durable hubset, the German-engineered ZR1.

Zipp Cogniton Hubs
The new Cognition Straightpull hubs, made of high-strength Z310.9 aluminium are extremely lightweight and offer a new freewheel body technology. The Swiss stainless steel bearings are the most precise in the entire industry. Specially developed hub bodies also distribute the load of the spokes more evenly over a larger surface to prevent torsion in the bearing area. The result is lower resistance and greater durability. The 17 mm hub axles are extremely stiff. The hub itself is milled using modern EDM technology so that 50 percent harder materials can be machined 20 times more precisely. The Cogniton hub series with Straightpull spokes offer an even higher lateral stiffness.

ABLC Sawtooth
zipp´s Sawtooth dimple design consists of 12 nodes that are specifically 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 ahigher 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.

Showstopper
Showstopper technology uses a molded silicone carbide (SiC) surface brake ring for maximum wet braking performance. The result is a braking performance that is equal to that of an aluminium rim, even in torrential rain. Showstopper technology offers greater wet braking power than any other carbon wheel.

ImPress
The imprint graphics not only provide valuable weight savings, but also enable a unique and durable application of the four letters most feared by the competition in cycling racing: Z-I-P-P.

Details

  • Maximum tyre pressure 125 psi
  • Maximum rider weight 113 kg
  • Campagnolo freewheel sold separately
Specifications
Intended use
Road  
Construction
Rear  
Axle system
Rear wheel 10x130  
Axle standard
Quick release  
Rims
Material: Carbon
System: Hollow chamber
Profile Height: Medium (30 - 50 mm)
Height: 45
tire type: Wire/clincher
Braking system: Rim brake
tubeless ready: yes
Internal width: 19 mm
Size (In Inches): 28 inches
Rear Hub
Type: Cognition-DB
Assembly Width: 130 mm
Diameter Axle: 10 mm
Sprocket Type: SRAM XDR 12s
Spokes number: 24
Features: For quick release, Sealed, Sealed bearings
Spokes
Style: CX-Ray
Spoke-lacing: Double crossed
Front Wheel
constructed for Brake type: ---  
Rear Wheel
constructed for Brake type: Rim brakes
Weight: 822 g
Scope of Delivery
Delivery: quick release, tubeless valve, valve wrench, tubeless rim tape, Platinum Pro brake pads  
Gender
Unisex
Model year
2021
Product number
1226880
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