With the Zipp 303 S Tubeless Disc Brake road bike wheels, Zipp has put a wheel set on the market for every cyclist who is looking for speed. The Zipp 303S is the successor of the Zipp 302 and is inspired by the popular all-round Zipp 303 wheels, but is just a bit more attractively priced. The Zipp 303 S Tubeless Disc Brake wheels have a low weight of only 1540 grams, despite the 45 mm deep aerodynamic rims. This makes them suitable for both the flat and the mountains. The wide rim with an internal rim width of 23 mm allows the fitting of tyres from 25 mm to 50 mm. You won't find a more all-round wheelset; the 303S is suitable for road racing, gravel riding and even cyclocross. With an internal rim width of 23 mm, external rim width of 27 mm and a depth of 45 mm, the 303S saves 10 watts at a speed of 40 km/h compared to the "old" Zipp 302 Disc, according to internal wind tunnel tests. The Zipp 303 S Tubeless Disc Brake wheels are built around Zipp 76/176 Disc Brake hubs and spoked with aerodynamic Sapim CX-Sprint spokes. The new wide carbon rims are tubeless ready, which means that you can ride with or without an inner tube. Tubeless riding with lower tyre pressure means lower rolling resistance, increased comfort and better grip.
With the Zipp 303 S Tubeless Disc Brake road bike wheels, Zipp has put a wheel set on the market for every cyclist who is looking for speed. The Zipp 303S is the successor of the Zipp 302 and is inspired by the popular all-round Zipp 303 wheels, but is just a bit more attractively priced. The Zipp 303 S Tubeless Disc Brake wheels have a low weight of only 1540 grams, despite the 45 mm deep aerodynamic rims. This makes them suitable for both the flat and the mountains. The wide rim with an internal rim width of 23 mm allows the fitting of tyres from 25 mm to 50 mm. You won't find a more all-round wheelset; the 303S is suitable for road racing, gravel riding and even cyclocross. With an internal rim width of 23 mm, external rim width of 27 mm and a depth of 45 mm, the 303S saves 10 watts at a speed of 40 km/h compared to the "old" Zipp 302 Disc, according to internal wind tunnel tests. The Zipp 303 S Tubeless Disc Brake wheels are built around Zipp 76/176 Disc Brake hubs and spoked with aerodynamic Sapim CX-Sprint spokes. The new wide carbon rims are tubeless ready, which means that you can ride with or without an inner tube. Tubeless riding with lower tyre pressure means lower rolling resistance, increased comfort and better grip.
With the Zipp 303 S Tubeless Disc Brake road bike wheels, Zipp has put a wheel set on the market for every cyclist who is looking for speed. The Zipp 303S is the successor of the Zipp 302 and is inspired by the popular all-round Zipp 303 wheels, but is just a bit more attractively priced. The Zipp 303 S Tubeless Disc Brake wheels have a low weight of only 1540 grams, despite the 45 mm deep aerodynamic rims. This makes them suitable for both the flat and the mountains. The wide rim with an internal rim width of 23 mm allows the fitting of tyres from 25 mm to 50 mm. You won't find a more all-round wheelset; the 303S is suitable for road racing, gravel riding and even cyclocross. With an internal rim width of 23 mm, external rim width of 27 mm and a depth of 45 mm, the 303S saves 10 watts at a speed of 40 km/h compared to the "old" Zipp 302 Disc, according to internal wind tunnel tests. The Zipp 303 S Tubeless Disc Brake wheels are built around Zipp 76/176 Disc Brake hubs and spoked with aerodynamic Sapim CX-Sprint spokes. The new wide carbon rims are tubeless ready, which means that you can ride with or without an inner tube. Tubeless riding with lower tyre pressure means lower rolling resistance, increased comfort and better grip.
With the Zipp 303 S Tubeless Disc Brake road bike wheels, Zipp has put a wheel set on the market for every cyclist who is looking for speed. The Zipp 303S is the successor of the Zipp 302 and is inspired by the popular all-round Zipp 303 wheels, but is just a bit more attractively priced. The Zipp 303 S Tubeless Disc Brake wheels have a low weight of only 1540 grams, despite the 45 mm deep aerodynamic rims. This makes them suitable for both the flat and the mountains. The wide rim with an internal rim width of 23 mm allows the fitting of tyres from 25 mm to 50 mm. You won't find a more all-round wheelset; the 303S is suitable for road racing, gravel riding and even cyclocross. With an internal rim width of 23 mm, external rim width of 27 mm and a depth of 45 mm, the 303S saves 10 watts at a speed of 40 km/h compared to the "old" Zipp 302 Disc, according to internal wind tunnel tests. The Zipp 303 S Tubeless Disc Brake wheels are built around Zipp 76/176 Disc Brake hubs and spoked with aerodynamic Sapim CX-Sprint spokes. The new wide carbon rims are tubeless ready, which means that you can ride with or without an inner tube. Tubeless riding with lower tyre pressure means lower rolling resistance, increased comfort and better grip.
Last updated at 06/30/2026 12:32:25
Zipp Wheel 303 S Disc CL Rear Shimano / 700C
Delivery $231.70
AM 303 S Carbon Tubeless Disc Brake Center Locking 700c Rear 24Spokes SRAM 10/11sp 12x142mm Standard Graphic A1
Free delivery between 8–13 July
Zipp Rear Wheel 303 S TLR Carbon with Sram STD Driver
Free delivery
ZIPP 303 S TL Disc CL Rear a1 303 S Tubeless 12 x 142 11/12 speed
Free delivery between 3–13 July
Zipp 303 S Tubeless Disc Brake | Zipp Wheels Rear Shimano/SRAM Road
Free delivery
Zipp 303 S Tubeless Disc Brake Rear 700c Wheel (SRAM/Shimano)
Delivery between 3–8 July $39.55
Zipp 303 S Carbon Tubeless Disc Brake Rear Wheel Centerlock / Shimano HG
Free delivery between 6–14 July
ZIPP Zipp Carbon Wheel Tubeless 303 S Disc Centre Locking Rear A1
Delivery $100
originally posted on competitivecyclist.com
I've had these for the better part of two years, and they're great. I use them on my gravel bike. They're lighter than my aluminum gravel wheelset. They are also aero and reasonably stiff. I have swapped between 28mm road-type tubeless tires when I want to take the gravel bike on the road, and 40mm gravel tires for gravel. The wheels are at home on either terrain. The tubeless setup has been flawless. The biggest issue I have had is the freehub design is held in by friction and if it comes out you sometimes have to remove the entire cassette in order to get to properly re-seat the seal. (I thought I previously reviewed these but my review seems to have disappeared.)
originally posted on sigmasports.com
I was a bit skeptical about hookless rims, but as these are for my gravel bike I would be running much lower pressures than the stated maximum. They have been performing brilliantly for the months I have been using them, the hubs are smooth and the freezing sound is a nice happy medium. Not too loud but not silent by any means. A bit of grease in there could make them almost silent if that's your preference. The inner rim width is perfect for high volume tyres, which went on the rims easy with no levers. Tubeless set up was easy. Great looking and performing wheels. Very happy. Only negative would be that the engagement isn't instant and can be feel a little sloppy compared the the 54t Ratchet on my dtswiss hubs, but it's not really a massive issue for me.
originally posted on sigmasports.com
Got these as an upgrade to a Cervelo Aspero gravel bike. Shod with Panaracer Gravel King 38mm tyres and setup tubeless. Tyres installed easily and were holding pressure after 48 hours.First rides have impressed - these wheels are noticeably faster, especially on climbs and are still smooth on the rough stuff.Great value for the quality and Zipp lifetime warranty.
| Rim | Carbon clincher |
| Brake Compatibility | Disc brake (Center Lock) |
| Axle | 142 x 12mm |
| Hub | 176D |
| Spokes | Sapim CX-Sprint |
Zipp Wheel 303 S Disc CL Rear Shimano / 700C
Delivery $231.70
AM 303 S Carbon Tubeless Disc Brake Center Locking 700c Rear 24Spokes SRAM 10/11sp 12x142mm Standard Graphic A1
Free delivery between 8–13 July
Zipp Rear Wheel 303 S TLR Carbon with Sram STD Driver
Free delivery
ZIPP 303 S TL Disc CL Rear a1 303 S Tubeless 12 x 142 11/12 speed
Free delivery between 3–13 July
Zipp 303 S Tubeless Disc Brake | Zipp Wheels Rear Shimano/SRAM Road
Free delivery
I've had these for the better part of two years, and they're great. I use them on my gravel bike. They're lighter than my aluminum gravel wheelset. They are also aero and reasonably stiff. I have swapped between 28mm road-type tubeless tires when I want to take the gravel bike on the road, and 40mm gravel tires for gravel. The wheels are at home on either terrain. The tubeless setup has been flawless. The biggest issue I have had is the freehub design is held in by friction and if it comes out you sometimes have to remove the entire cassette in order to get to properly re-seat the seal. (I thought I previously reviewed these but my review seems to have disappeared.)
I was a bit skeptical about hookless rims, but as these are for my gravel bike I would be running much lower pressures than the stated maximum. They have been performing brilliantly for the months I have been using them, the hubs are smooth and the freezing sound is a nice happy medium. Not too loud but not silent by any means. A bit of grease in there could make them almost silent if that's your preference. The inner rim width is perfect for high volume tyres, which went on the rims easy with no levers. Tubeless set up was easy. Great looking and performing wheels. Very happy. Only negative would be that the engagement isn't instant and can be feel a little sloppy compared the the 54t Ratchet on my dtswiss hubs, but it's not really a massive issue for me.
Got these as an upgrade to a Cervelo Aspero gravel bike. Shod with Panaracer Gravel King 38mm tyres and setup tubeless. Tyres installed easily and were holding pressure after 48 hours.First rides have impressed - these wheels are noticeably faster, especially on climbs and are still smooth on the rough stuff.Great value for the quality and Zipp lifetime warranty.
I recently bought my first gravel bike and having ran the stock wheels (alloy rims) for about 4 weeks I felt an upgrade was in order.. The Zipp 303s are my first set of carbon wheels and I couldn’t be happier with them! They’re not the lightest around but they feel solid and are a massive improvement. The reduction in weight saw an immediate improvement on my Strava efforts. About 2 weeks after fitting these I did start to see some bad reviews on this wheel set which did concern me initially, however having done a 115km gravel epic on some very challenging terrain on the North Yorkshire moors any doubt was quickly removed! The bad reviews mainly mention the hub bearings however I think these are from previous versions (time will tell). They are very easy to set up ... MoreI recently bought my first gravel bike and having ran the stock wheels (alloy rims) for about 4 weeks I felt an upgrade was in order.. The Zipp 303s are my first set of carbon wheels and I couldn’t be happier with them! They’re not the lightest around but they feel solid and are a massive improvement. The reduction in weight saw an immediate improvement on my Strava efforts. About 2 weeks after fitting these I did start to see some bad reviews on this wheel set which did concern me initially, however having done a 115km gravel epic on some very challenging terrain on the North Yorkshire moors any doubt was quickly removed! The bad reviews mainly mention the hub bearings however I think these are from previous versions (time will tell). They are very easy to set up tubeless and are fast rolling. They feel well built and handle corners well. They also look great and will not break the bank either. For a sub £1000 wheel set they are a no brainier in my opinion.
Conti GP 5000S TR (28) are so tight, that I found myself straining and swearing to get the tires on the rims. Tires inflated with just a track pump. Tire fitting aside, the wheels do not disappoint. The Zipps spin up fast and are fairly stiff. Thanks to the wide internal width, I’m running only 52 and 56 psi which removes a lot of road chatter. I switched over from Bontrager Aeolus 37 Pros and for about the same depth (37 v 40), the Zipp wheels feel a faster.
Around a month of riding now. Out of the box the wheels were easy to set up tubeless (although used a boost pump) with GP5000s. An upgrade from stock wheels, and the difference in acceleration on flat and up hill is most noticeable, rolling along definitely feels faster as well. Also... They look superb on the bike.Delivery was fast and easy - Sigma Sports is not always the cheapest for every purchase (although I couldn't find these wheels for less elsewhere) but the quality of service once again from Sigma was top notch!
303S wheelset is good to go. The factory tape is solid with no leaks. Freehub has some noise but is nice and quiet compared to my GRC1400 screamers. Bought these as a second set for tarmac. Installed road tires on them. I appreciate the lower noise level on downhill runs. The GRCs would drive me crazy while coasting downhill sections....too loud!Anyways, great value wheel that is just as good as the other set I have that cost considerably more and they weigh about the same.30mm Contis spec'd at 30.5mm once installed.Get'em and rip!
Bought these wheels on a fabulous offer, ready for a new build.Thet appeared perfect, so disposed of the packaging.However, when I came to build the bike I had noise in the rear hub.There was play in the axle in the rear hub bearings. I would have returned, but had disposed of the box. I raised a ticket with Sigma, who are brill as usual.But couldn't be bothered rigmerole of returning, so replaced the bearings with new NTN at my cost. The existing bearings were very poor quality, clearly out of tolerance, and showing signs of corrosion after only a couple of rides.On the new quality bearings the Zipp 303s are now perfect.The bike looks and rolls well.
Like any card-carrying MAMIL, I devoted far too long to the search for a new set of wheels for my Cannondale Super X! I needn't have bothered. These Zipps tick all the boxes and I will explain why.1. They are cheap. Yes, these things are all relative but at under £800 (they have gone up since I bought them), there is very little to compare in terms of quality, weight and manufacturer guarantee. Yes, you will find lighter wheels for more money but are you comparing like for like in terms of overall strength, rim depth and of course (to some degree) snob/resale value? I was tempted by the Parcours Ronde at about £250 more in price and 150g less in weight, but concerned about the lifetime warranty with a relatively small company.2. They appear to be well made. ... MoreLike any card-carrying MAMIL, I devoted far too long to the search for a new set of wheels for my Cannondale Super X! I needn't have bothered. These Zipps tick all the boxes and I will explain why.1. They are cheap. Yes, these things are all relative but at under £800 (they have gone up since I bought them), there is very little to compare in terms of quality, weight and manufacturer guarantee. Yes, you will find lighter wheels for more money but are you comparing like for like in terms of overall strength, rim depth and of course (to some degree) snob/resale value? I was tempted by the Parcours Ronde at about £250 more in price and 150g less in weight, but concerned about the lifetime warranty with a relatively small company.2. They appear to be well made. Sapim CX-Sprint spokes are bit heavier than CX-Ray but also slightly tougher. Considering that Kent where I live has the worst roads in Britain, that is a consideration. If I was only ever riding billiard table smooth surfaces I would probably pay more, but having trashed several alloy rims, I'll err on the side of caution. I read a few reviews mentioning that the freehub flies off when changing the wheel. This has not occurred with me - at least not yet. I investigated hand built wheels from a couple of local(ish) wheel builders but came up against the usual issues: tied into specific rim, hub and spoke suppliers that did not scream quality; inability to accurately estimate the weight of the completed product. I am yet to find a wheel builder who will do what they are asked to do, rather than what they can/will do. Sigma redished them for the Cannondale AI offset for a very reasonable amount, although some of the other manufacturers (e.g. Parcours) offered to do this free of charge. I checked with Zipp and it doesn't void the warranty.3. They are easy to set up. The hookless design works very well with my Pirelli Cinturato Velo 26mm tyres. Used a chamber track pump to set up - each wheel took just one attempt. The max 72psi rating for these wheels is not an issue. I have inflated to about 65psi (as per the Zipp rider weight recommendation) and the tyre feel hard - pretty sure I could go down to 55-60psi without issue if I want greater comfort.4. They ride well. They are about 150g lighter than my previous wheels (as set of Hed Ardennes Black Stallion which weigh considerably more than the manufacturer's stated weight for some reason). They do catch the wind a bit but not significantly more than my ENVE SES3.4s. The get up to speed well and hold speed well. The difference is not night and day, but it is noticeable. I have only ridden them on three fairly short rides in pretty grotty conditions so looking forward to giving them a longer test soon.Anyway, these seem to be a fit and forget purchase. I hope that remains the case!
These were bought to upgrade the (very average) stock alloy wheels that came with a new bike. I've ridden mid-section carbon wheels before (Hunt, Bontrager) and have used road tubeless for a while, but was a bit sceptical about the arguments in favour of added width and lower pressures.Well, I was wrong: these are seriously good. The biggest difference has been in terms of comfort. Running P-Zeros at 55 psi front/60 rear (as suggested by Zipp's calculator) and the reduction in road buzz is remarkable. There has been no loss of speed at all, either. FWIW, the tyres mounted *fairly* easily (they needed a little bit of persuasion from a tyre lever, but nothing drastic) and inflated first time with a standard floor pump. Air retention so far is good; they lose 5-10 ... MoreThese were bought to upgrade the (very average) stock alloy wheels that came with a new bike. I've ridden mid-section carbon wheels before (Hunt, Bontrager) and have used road tubeless for a while, but was a bit sceptical about the arguments in favour of added width and lower pressures.Well, I was wrong: these are seriously good. The biggest difference has been in terms of comfort. Running P-Zeros at 55 psi front/60 rear (as suggested by Zipp's calculator) and the reduction in road buzz is remarkable. There has been no loss of speed at all, either. FWIW, the tyres mounted *fairly* easily (they needed a little bit of persuasion from a tyre lever, but nothing drastic) and inflated first time with a standard floor pump. Air retention so far is good; they lose 5-10 psi/week (about standard with tubeless in my experience).In the gusty winds we've had recently, the wheels are affected, and it does need a little work to maintain a line, but there's no alarming grabbing sensation, and everything is very predictable. They're certainly better than the Hunts I've used in this regard, and I'd say on a par with the Bontragers.All in all, for less than £1k, you can't go wrong with these. They're the kind of product that make you wonder why you'd spend more.
| Rim | Carbon clincher |
| Brake Compatibility | Disc brake (Center Lock) |
| Axle | 142 x 12mm |
| Hub | 176D |
| Spokes | Sapim CX-Sprint |
