0

Your Cart is Empty

The perfect do it all disc road & gravel wheelset. Zipp's 40mm deep 303 rim is equally at home on rolling road rides or gravel. Handbuilt to order on Chris King R45D, White industries CLD, ONYX Vesper or Industry Nine Road Disc hubs using Sapim CX Ray bladed spokes.

If you are looking for a wheel specification different than those shown below please request a custom wheel quote here.

The Rim:

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 tire, boosting aero efficiency on the road. The wide rim stance also features less tire deflection for reduced rolling resistance.

The combination of the wider tire, increased tire volume, and lower tire pressure helps to reduce rider fatigue by smoothing out the ride over imperfect pavement and road conditions—the tire and wheel system absorbs the shaking, not the rider.

Rim Features.

  • 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 tire bed sign allows for simple tool-free installation and removal with no need for an air compressor to seat the tire.
  • 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.

Rim Specifications.

SIZE (WHEELS) 700c
RIM CONSTRUCTION Carbon – Hookless
TIRE COMPATIBILITY Tubeless tires only
BRAKE COMPATIBILITY Disc 
DRIVER BODY TYPE n/a, SRAM XDR, SRAM/Shimano Road
RIM - INSIDE WIDTH 25mm
RIM FINISH UD fiber, adhesive decals
RIM PROFILE Symmetrical

    303_CKr45D

    Zipp 303 Firecrest Disc Wheelset

    Ready To Ship In:4-12 weeks depending on rim / hub availability. Custom built to order.
    Ships To: Worldwide (except ENVE USA only).
    Returns: 60 Day Free Returns*

    Hub

    The perfect do it all disc road & gravel wheelset. Zipp's 40mm deep 303 rim is equally at home on rolling road rides or gravel. Handbuilt to order on Chris King R45D, White industries CLD, ONYX Vesper or Industry Nine Road Disc hubs using Sapim CX Ray bladed spokes.

    If you are looking for a wheel specification different than those shown below please request a custom wheel quote here.

    The Rim:

    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 tire, boosting aero efficiency on the road. The wide rim stance also features less tire deflection for reduced rolling resistance.

    The combination of the wider tire, increased tire volume, and lower tire pressure helps to reduce rider fatigue by smoothing out the ride over imperfect pavement and road conditions—the tire and wheel system absorbs the shaking, not the rider.

    Rim Features.

    • 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 tire bed sign allows for simple tool-free installation and removal with no need for an air compressor to seat the tire.
    • 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.

    Rim Specifications.

    SIZE (WHEELS) 700c
    RIM CONSTRUCTION Carbon – Hookless
    TIRE COMPATIBILITY Tubeless tires only
    BRAKE COMPATIBILITY Disc 
    DRIVER BODY TYPE n/a, SRAM XDR, SRAM/Shimano Road
    RIM - INSIDE WIDTH 25mm
    RIM FINISH UD fiber, adhesive decals
    RIM PROFILE Symmetrical
      • AVT Works is our in house wheel building and service dept offering a full range of custom wheel builds and hub servicing. Can't find the rim / hub combination you're looking for then request a custom wheel quote here.
      • Available with any of the hubs listed on our site including; Chris King, White Industries, Phil Wood, ONYX, Industry Nine and PAUL Components.
      • Available with a wide variety of rims from HED, ENVE, Santa Cruz, Race Face, WTB, Velocity, Praxis, White Industries, Astral, HPLUS Son, BOYD and more with Wheelsmith or SAPIM CX Ray spokes.
      • Please allow 4-8 weeks to build and ship (depending on availability of parts)
      • If you're looking for a hub / rim combination not listed here please contact us.
      • * Custom made products including AVT Works wheelsets can be returned post purchase subject to a 20% re-stocking fee. More info can be found in our returns policy.

      SIGN UP & SAVE

      Available For Pre Order.
      Ships In Approx 8 Weeks.
      Available For Pre Order.
      Ships In Approx 8 Weeks.
      Available For Pre Order.
      Ships In Approx 8 Weeks.
      Available For Pre Order.
      Ships In Approx 8 Weeks.