Like this site? Help us to make it better.


Zipp’s NSW carbon wheels get wider tubeless-ready rim profiles

Zipp's top-end wheels get wider in-line with wide tyre trend

One of the foremost trends in road cycling (and mountain biking) is for wider tyres and rims. To that end, Zipp has just announced a new range of NSW Carbon Clincher Tubeless wheels with an updated rim profile measuring 19mm internally, optimised around 25mm tyres.

Zipp’s NSW range is it’s top-end offering, packing in all its latest know-how when it comes to carbon manufacturing and aerodynamic design. There are three wheels to choose from; 303 (45mm rim depth), 404 (58mm) and 808 (82mm) covering the wide range of road race and time trial applications.


- The pros and cons of carbon fibre wheels

As well as growing in width, Zipp says it has entirely redesigned the rim shape to seamlessly integrate with the wider tyres it intends the rims to be used with.

The rims are designed to be compatible with both regular clincher and tubeless tyres. It recently launched its first tubeless-specific tyre and is the latest brand to join the growing tubeless movement. The wheels ship with tubeless tape and valves already installed.


Aside from the new rims, there are the same Cognition hubs with a freehub employing magnets to reduce drag when coasting. There’s an SRAM XDR freehub option for using with a 10-42t cassette. It’s also worth remembering that these NSW wheels are manufactured in the US, at the company’s Indianapolis base, when you're looking at the prices below.

The 303 NSW wheelset weighs a claimed 1,500g, the 404 NSW 1,620g, and each wheelsets costs £2,678. The 808 NSW weigh 1,855g and cost £2,857.


Zipp’s lower-tier Firecrest range will continue to use a narrow rim profile (17mm) but it has managed to shave a bit of weight of the 303, 404 and 808 wheelsets.

Zipp says it has also revised the Firecrest rim profile to improve the aero performance, while ShowStopper textured brake track improves rim brake performance in all weather conditions.

The Firecrest wheels are quite a bit more affordable than the NSW wheels. The 303 Firecrest and 404 Firecrest weigh 1,480g and 1,615 respectively and cost £1,986, while the 808 Firecrest come in at 1,830g and cost £2,321.

All wheels are available from June onwards. More details at

David has worked on the tech team since July 2012. Previously he was editor of and before that staff writer at RCUK. He's a seasoned cyclist of all disciplines, from road to mountain biking, touring to cyclo-cross, he only wishes he had time to ride them all. He's mildly competitive, though he'll never admit it, and is a frequent road racer but is too lazy to do really well. He currently resides in the Cotswolds.

Latest Comments

  • peted76 1 sec ago

    That's a really interesting algorithm. Surely it's completley flawed though, it's the point of 'power measurement' that it's instant and unrefined...

  • BOOBOOJMOOJ 29 min 15 sec ago

    I know that this is an old article but I find having a gigantic slab of garlic bread or similar carbs the day before the ride helps a lot, and...

  • JMcWatt 52 min 31 sec ago

    Seems excellent value to me, I purchased the Muc-Off X3 and while it does an excellent job it's more than double the price. 

  • AlsoSomniloquism 53 min 20 sec ago

    Nope, side mirror if we want to be technical and most commonly referred to as wing mirror by pretty much any mechanic or general person in the...

  • Shake 58 min 11 sec ago

    Of the official that was hit, BBC sport said "the race official struck in the incident suffered head and spinal injuries but was speaking when he...

  • JMcWatt 59 min 48 sec ago

    J-Bend spokes offer significatly less tolerance to straight pull, therefore the wheelset can never be as stiff, which of couse means a noticable...

  • Awavey 1 hour 29 sec ago

    I'm sure they do exist, I just dispute they represent the real 'average' cyclist, because I dont believe they collect anywhere near enough data to...

  • dave atkinson 1 hour 4 min ago

    ok, this should be fixed now. at least in the sense that i've turned the ads off, so no need for a privacy popup :-)

  • BOOBOOJMOOJ 1 hour 10 min ago

    I don't think we're talking cross-purposes here. We appear to be in agreement that using aero bars is antisocial in residential areas (and what's...

  • Mungecrundle 1 hour 14 min ago

    One would like to think he took a bite out of the evil black hearted bastard. But Adolf was a noted vegetarian so I doubt it.