303 Firecrest Carbon Tubular Disc-brake

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Description

Zipp’s 303 Firecrest Tubular Disc-brake wheelset offers game-changing innovations for performance-minded cyclists. This wheelset was developed to meet the needs of our sponsored professional racers – road and cyclocross – as well as any cyclist who prefer the time-proven ride qualities of riding tubulars. The 303 Firecrest Tubular Disc-brake features key technologies first developed for Zipp’s halo-level NSW wheelsets. Our ABLC™ Sawtooth™ dimple design that extends all the way to the edge of the rim. The rim features construction upgrades that deliver improved impact resistance. These innovations enhance a wheelset that’s excelled in two of pro cycling’s harshest proving grounds, the Spring Classics and the Cyclocross World Cup. At the center of the 303 Firecrest Tubular is a versatile and durable new hubset, the German-engineered ZR1 DB.

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Msrp

$1150 - $1350

Model ID

WH-303-FTUD-A1

Features

New Zipp graphics and cosmetic identity that scream speed
Go-anywhere 45mm rim depth tubular pro proven in Spring Classics and Cyclocross World Cup
New ZR1 DB hubset 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
Center locking rotor interface. Lockring is included
Ships with 12mm front and rear end caps
XDR™ or SRAM/Shimano driver bodies
Campagnolo driver body sold separately

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Technology

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 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.

AeroBalance

Zipp’s sole mission is to help you go faster. That's why our wheels are race-ready before they're camera-ready. For years, Zipp has used a combination of testing methods – wind tunnel, CFD computer simulations, pro athlete evaluations, on-road testing, and the RollingRoad ride simulator – to refine aero performance to new levels of excellence. Over the decades of innovation, our engineers have learned to look beyond just focusing on simply reducing aero drag. Instead, the goal now is to reduce aero drag while also minimizing the effects of crosswinds on handling. This optimizing of aero efficiency and crosswind stability became known internally at Zipp as AeroBalance. The approach began with Firecrest technology and has been advanced with the introduction of the NSW lineup, especially with the Sawtooth technology found in the 454 and 858 NSW. Sawtooth accomplishes this with a series of patented fin-shaped Hyperfoil nodes along the inner diameter of the rim that work together with our new HexFin ABLC dimples for improved airflow.

TSE Technology

Zipp’s TSE Technology (Total System Efficiency) was developed by our engineers in the Nest Advanced Development Lab in Indy. This approach to carbon-wheel manufacturing means the 303 Firecrest’s precise rim layup results in greater all-around efficiency for greater speed through reduced: Wind resistance, rolling resistance, gravity (weight + durability), vibration losses

Specifications

Size (wheels)	700c
Rim construction	Carbon
Tire compatibility	Tubular
Brake compatibility	Disc (Center Lock)
Driver body type	n/a, SRAM XDR, SRAM/Shimano Road
Rim - inside width	n/a
Rim finish	UD fiber, adhesive decals
Rim profile	Symmetrical
Weight (g)	1372
Weight Based On	Lightest configuration: 12mm through axles and XDR body. No tape or valve included in weight. Front: 628g Rear: 744g