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Zipp 303 S Tubeless Carbon Disc Brake Wheelset
Zipp 303 S Tubeless Carbon Disc Brake Wheelset Zipp 303 S Firecrest Tubeless Disc Wheelset
Zipp 303 S Tubeless Carbon Disc Brake Wheelset Zipp 303 S Firecrest Tubeless Disc Wheelset
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Zipp 303 S Tubeless Carbon Disc Brake Wheelset
Zipp 303 S Tubeless Carbon Disc Brake Wheelset Zipp 303 S Firecrest Tubeless Disc Wheelset
Zipp 303 S Tubeless Carbon Disc Brake Wheelset Zipp 303 S Firecrest Tubeless Disc Wheelset

303 S Tubeless Carbon Disc Brake Wheelset

Mfg PartNum:
  (9 customer reviews)
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Backorder: This item is currently out of stock but is available to purchase today as a backorder. The expected availability date shown above is our best estimate as to when it will be shipped to you, but this date is subject to change based on our receipt of this item from its vendor. Shipping in the continental US is free for all backorder items (for international orders, our customer service team will contact you when the item is available to ship). Your credit card will not be charged until your item ships (Paypal requires payment up front, but you can cancel for full refund). Anytime prior to shipment, your backorder can be cancelled by contacting our customer service team.

Speed For The Road Ahead — All Of Them

Zipp's 303 S Firecrest Tubeless Disc-brake wheelset provides today's cyclists the versatility they demand with the speed they crave.

Expanding greatly on its heritage of conquering the Spring Classics, this 303 wheelset maintains its ideal-for-every-terrain 45mm rim depth but adds a significantly wider internal width to provide greater performance and ride quality in almost every measurable way. Road bikes are more versatile than ever, no matter the road surface, but just as fast as before. The 303 S offers an entirely new rim profile and design to optimize rider performance on this new breed of bike.

This wheelset is tubeless for disc-brake bikes, allowing the ability to run wide tires at lower pressures for race-ready speed on or off the pavement.

Lightweight. Aero. Gravel-Ready.

The 303 S is among Zipp's lightest wheelsets, optimized for top aero performance with a 28mm tire but capable of handling gravel tires up to 50mm wide.

The key innovation is in the 303 S's rim design. Its 45mm rim depth is the same as its predecessor, the 302 Disc brake. But its external rim width is 2mm wider, at 27mm, and its tire bed is a full 7mm wider, at 23mm internal width. That rim platform is designed to be the fastest with a 28mm tire. The wide rim optimizes tire profile to allow lower tire pressure. That helps to reduce rolling resistance and provides a more compliant ride. The result of all this is a 10 watt savings vs. a top peer wheel in total power required to ride 40kph on a flat road with a 28mm tire, according to internal Zipp testing.

This groundbreaking wheelset also features all-new cosmetics, setting the rider apart from the pack, and comes at an attractive price.


  • New Zipp graphics and cosmetic identity that scream speed
  • Fastest with 28mm, fits wide gravel tires as well
  • Wide rims optimize tire profile to allow lower tire pressure, especially with tubeless. The result is a larger contact patch for increase grip for confident cornering, descending, and handling in wet conditions.
  • Lower tire pressures and larger volume provides a compliant ride with fewer vibrations.
  • Significant watt savings when running larger tires at lower pressure.
  • Wide hookless rims create a seamless transition to the tire, reducing drag
  • 76 / 176 DB hubs with center locking interface
  • XDR driver body option
  • Lock ring included
  • Tubeless Tires Only - These wheels are tubeless specific but can be used with a tube when needed
  • Lifetime Warranty
  • Replacement 76 /176 hub end caps sold separately.

  • FREE Cassette Installation - Order a cassette along with a wheelset and we can install the cassette for free. Cassette installation requires special tools that not all our customers have. The cassette will be professionally installed and torqued to spec. Just add "Please install cassette" to your order notes at checkout and we'll take care of you.

    B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.

    The product weight specified is an approximate weight based on the manufacturer's specifications (if available) or our measurement of one or two examples. For most products, the weight will typically vary by 5% to 10%.

    Signature will be required when taking delivery of this product.


    Axles: Thru-Axle 


    Brake Compatibility: Centerlock Disc 


    Wheel Features: Disc Brake Compatible 


    Tire Compatibility: Hookless 


    Wheel Size: 700C/29" (ISO 622) 


    Rim Material: Carbon 


    Weight: 1540g (Wheelset) 


    Rim Width: 23mm internal 


    Rim Profile: Symmetrical 


    Rim Finish: UD fiber / Bake-On labels / Matte clear coat 


    Spoke Nipple: Brass 


    Spokes: Sapim CX Sprint 


    Spoke Count: 24 


    Spoke Pattern: 2 cross 


    Driver Body Type: n/a, SRAM XDR, SRAM/Shimano Road 


    Axels: 12x100, 12x142 TA 


    Bearings Cartridge: Steel 


    Driver Mechanism: 3 Pawls Leaf Spring 

    Shimano 11sp - 12x100/12x142

    Mfg PartNum: 00.1918.527.000/00.1918.528.000 

    Sram XDR 11/12sp - 12x100/12x142

    Mfg PartNum: 00.1918.527.000/00.1918.528.001 

    Mfg Warranty: 72 Mo. Parts & Labor

    Warranty URL: https://www.sram.com/en/zipp/campaigns/warranty

    Ordered by Most Relevant First
    5 stars
    4 stars
    3 stars
    2 stars
    1 stars
    Zippin' along with the new Zipp 303 S
    by jboehlke
    Cycling Enthusiast
    Portland, OR
    1 of 1 customers found this review helpful.

    These are fantastic, super light for a mid aero 45mm profile, fast to spin up, no annoyingly loud free wheel, lighter than previous Firecrest that cost significantly more. Only complaint is no drain holes, but come Fall I will send them back to Zipp for the drilling of them through the fantastic service that Western Offers, newer lots, according to Zipp, will come with the drain holes. Note holes are 180 degrees from the install valve, ie across the rim if you are in doubt as to whether you have them or not.

    Reviewed 8/27/2021
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    Like butter
    by Anonymous
    1 of 1 customers found this review helpful.

    So HAPPY I copd these wheels. Amazing and have had zero issues on windy days!

    Reviewed 2/25/2022
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    Installed on Trek Emonda SL6
    by Dave
    Cycling Enthusiast
    5 of 5 customers found this review helpful.

    Installed on my Trek Emonda SL6 and it transformed the bike from something I was going to sell, to my new favorite. These are a game changing wheelset. I am genuinely faster on climbs with these. As a nice bonus, I am also much more confident on descents and higher speed cornering on these as well.

    Reviewed 8/15/2020
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    These are fantastic wheels!
    by Tim
    Cycling Enthusiast
    New York

    I've wanted Zipp wheels my entire cycling life and now I finally own a set. They ride very nice and have a low rotational weight. Most people buy these for the aero benefit but I'm old and slow so I don't really notice a huge difference. I am riding 32mm Schwalbe Pro 1 tire which set up tubeless with ease. I've done tons of tubeless set ups for road, mountain and cyclocross. Without a doubt this was the easiest tubeless set up that I've ever done. There are YouTube videos showing guys setting these up with a standard floor pump but in my experience a compressor is the only way to go. Remove the valve core and use your compressor along with the appropriate fitting. If you do it this way you'll find the tire bangs right into place. At least the Schwalbes did. I also had no difficulty getting the tire on the rim. Another bonus is that good rim tape comes factory installed and the valve stem is of good quality. I really love these wheels. They look cool and ride great!

    Reviewed 4/25/2022
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    Love them
    by Anonymous
    1 of 1 customers found this review helpful.

    Running these on both bikes. Gravel rig with 40mm and road bike with 29mm. The matte finish and minimal graphics are choice.

    Reviewed 4/15/2022
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    Fantastic wheelset, worth the wait
    by Anonymous
    Cycling Enthusiast
    New Jersey
    6 of 6 customers found this review helpful.

    This is my first pair of carbon wheels so I don't have much to compare them to other than my old Mavic Alloy wheelset that they replaced. My average pace has increase 2-3 mph on rides, which is probably more due to the aero rather than weight savings. Comfort has improved significantly since I'm running my tires 10 psi lower. Overall, these were definitely worth the price, especially with the lifetime warranty.

    One thing to be aware of is that I had a lot of problems getting the tire bead to seat on the rim. I put Pirelli P-Zero TLRs on them, which where super-easy to get onto the rim without tire levers. However, I needed to resort to compressed air to blast the bead into place. This was not an issue at all with my hooked Mavic rims.

    Reviewed 3/26/2021
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    Great wheelset
    by Anonymous
    1 of 1 customers found this review helpful.

    I use this on 32 mm tubeless tires. Climbs like a champ, sturdy, quick power transfer

    Reviewed 8/30/2021
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    Fast and affordable wheels
    by JNaz
    Cycling Enthusiast
    Ashburn , VA
    4 of 4 customers found this review helpful.

    I got these wheels with their RT28 tires and it was simple to install. I like the feeling of the bike now that I can run them at lower pressure (in my case 55psi front and 58psi rear). They are super comfortable and have made me at least 1-1.5mph faster.

    Reviewed 8/14/2020
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    Amazing wheels!
    by Dduck
    Bay Area
    7 of 7 customers found this review helpful.

    Upgraded from the stock DT Swiss R470db wheels on my Roubaix. Huge difference! Feel like I am flying up inclines.

    Mounted them with 30c Schwalbe Pro One tires. Smoothest ride ever.

    Reviewed 7/26/2020
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