Zipp’s 303 Firecrest Tubeless Disc-brake wheelset is designed for the real world… a world of imperfect conditions, road surfaces, and elements where the bottom line is simple.

Efficiency = speed. It’s faster, lighter, and more capable over varied terrain—whether the surface is pavement in all its conditions or no pavement at all. Deeply rooted in Zipp’s drive to conquer the Spring Classics, the new 303 Firecrest is remade with a purpose-made approach for the demands of modern road bikes. When it comes to going fast on a bicycle, efficiency means reduced: Wind resistance, rolling resistance, rider fatigue, weight. The 303 Firecrest Tubeless Disc-brake was designed using real-world direct measurements (vs. primarily wind tunnel or computer simulation). The results were huge. Its rim is slightly more bulbous in design than its predecessor, with a 30mm outside width, a 25mm internal width, and a 40mm rim depth. The profile provides low drag and an improved transition between rim and tyre, boosting aero efficiency on the road. The wide rim stance also features less tyre deflection for reduced rolling resistance. The combination of the wider tyre, increased tyre volume, and lower tyre pressure helps to reduce rider fatigue by smoothing out the ride over imperfect pavement and road conditions—the tyre and wheel system absorbs the shaking, not the rider. At the center of the 303 Firecrest Tubeless Disc brake is a versatile and durable new hubset, the German-engineered ZR1 DB. This hubset features 66 points of engagement for quicker response. The 303 Firecrest Tubeless Disc-brake wheelset is for dedicated cyclists who aspire to the latest in technology. Its competitors… in races, against peers, or simply conquering personal limits. This is about becoming faster and matching your motivation to the most advanced technology.

Technologies

ABLC (Aerodynamic Boundry Layer Control) - Aerodynamic Boundry Layer Control(ABLC) refers to the patterned and instantley recognisable dimpled pattern found on all of their carbon rims.ABLC smoothes airflow across the rim's surface and is tailored to every model from the 202 to the Super 9 Disc. The third generation of ABLC has up to four time more dimples than before.

Aerobalance - Zipp's sole mission is to help you go faster.That's why their wheels are race ready before they're came camera ready.For years Zipp has used a combination of testing methods - windtunnel ,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 , their engineers have learned to look beyond just focusing on simply reducing aero drag while minimising the effects of crosswinds on handling.This optimising 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 sawtooth technology found in the 454 and 858 NSW.Sawtooth
accomplishes this with a series of patented fin-shaped Hyperfoil nodes along the ineer diameter of the rim that work together with their new HexFin ABLC dimples fpr improved airflow.

TSE Tecnology - Zipp's TSE technology (Total System Efficiency) was developed by their engineers in the Nest Adavanced Development Lab in Indy.
This approach to carbon wheel manufacturing means the 303 Firecrest's precise rim layup results in greater all round efficiency for greater speed through reduced wind resistance , rolling resistance,gravity(Weight + Durability),vibration losses.

 

Features

New Zipp graphics and cosmetic identity that scream speed
Versatile endurance wheelset for the modern road bike with tubeless and hookless rim profile
Lighter Weight than its predecessor, making it nimble and fast.
Tubeless Made Easy, optimised tyre bed sign allows for simple tool-free installation and removal with no need for an air compressor to seat the tyre.
Ultra-wide 25mm rim profile creates a better tyre interface to be fast on or off the road
New 40mm rim depth makes a light and aero wheel in every situation
New ZR1 DB hub is engineered in Germany with better seal design for improved durability and quicker response with 66 points of engagement
Ships with 12mm front and rear end caps
Center locking rotor interface. Lockring is included with the wheels
XDR or SRAM/Shimano driver bodies
Campagnolo driver body sold separately

 

Specifications

 

Size (Wheels) 700c
Rim Construction Carbon - Hookless
Tyre Compatibility Tubeless Tyres Only
Brake Compatibility Disc (Center Lock)
Driver Body Type SRAM XDR, SRAM/Shimano Road
Rim - Inside Width 25mm
Rim Finish UD fiber, adhesive decals
Rim Profile Symmetrical
Spoke Length DS 266mm, 272mm
Spoke Length NDS 270mm
Weight 1352g
Weight Based On Lightest configuration: 12mm through axles and XDR body. No tape or valve included in weight. Front: 613g/ Rear: 739g


    

303 Firecrest Recommended Front/Rear Tyre Pressure (PSI)

Rider Weight (lbs) 28mm 30mm
99 49/52 45/47
110 50/53 46/48
121 51/54 47/50
132 52/56 48/51
143 53/57 49/52
154 55/58 50/53
165 56/60 51/55
176 57/61 52/56
187 58/62 53/57
198 59/64 54/58
209 60/65 55/60
220 61/66 56/61
231 62/68 57/62
241 63/69 58/63
253 64/70 59/65

(00.1918.5.000)

  • New Zipp graphics and cosmetic identity that scream speed.
  • Versatile endurance wheelset for the modern road bike with tubeless and hookless rim profile.
  • Lighter Weight than its predecessor, making it nimble and fast.
  • Tubeless Made Easy, optimized tyre bed sign allows for simple tool-free installation and removal with no need for an air compressor to seat the tyre.
  • Ultra-wide 25mm rim profile creates a better tire interface to be fast on or off the road.
  • New 40mm rim depth makes a light and aero wheel in every situation.
  • New ZR1 DB hub is engineered in Germany with better seal design for improved durability and quicker response with 66 points of engagement.
  • Ships with 12mm front and rear end caps.
  • Center locking rotor interface. Lockring is included with the wheels.
  • XDR™ or SRAM/Shimano driver bodies.
  • Campagnolo driver body sold separately.
SKU 00.1918.5.000
Brand Zipp
Unit Of Measure ea

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