Zipp 858 NSW Carbon Tubeless Disc Wheelset Review 2026

What You Get

The 858 NSW is Zipp’s flagship deep-section race wheelset, built around its Sawtooth undulating rim profile. At the time of writing, Tredz had the front wheel reduced to £1,199.99 with only one unit left in stock, and the rear at £1,449.99 (down from £1,900 RRP) — genuine clearance-level pricing on a wheelset that typically retails well above £3,000 for the pair, so availability may not last.

Check front wheel price on Tredz | Check rear wheel price on Tredz

Key Features

• Sawtooth aero profile — an undulating 82-85mm rim depth designed to reduce aero drag variation as yaw angle changes, rather than a single fixed depth.
• 1,500g rear wheel weight — genuinely light for a rim this deep, helped by the ZR1 SL carbon construction.
• ZR1 SL hub with ceramic bearings — 66 points of engagement for a near-instant response when you put power down.
• Tubeless-ready, Centre Lock disc mount — set up tubeless from day one; minimum recommended tyre width is 28mm to suit the wide modern rim profile.

Who It’s For

Competitive age-groupers racing flat-to-rolling courses who want a genuine aero upgrade over a mid-depth training wheelset, and who are comfortable managing a deep-section wheel in crosswinds. This isn’t a wheelset for winter training or turbo sessions — it’s a race-day tool, and at this price point it should be treated as one.

Buying Tips

• Stock on this specific clearance pricing is limited — Tredz showed only one front wheel remaining at the time of writing, so buy the pair together if you want a matched set rather than risking the front selling out first.
• Check your bike accepts a minimum 28mm tyre before ordering — the wide rim profile isn’t designed around narrower race tyres.
• If you’re new to riding deep-section wheels, practise in crosswinds before race day; an 82-85mm front wheel is noticeably more affected by gusts than a 40-50mm training wheel.

Care and Maintenance

Top up tubeless sealant every 2-3 months, more often in hot weather. Ceramic bearing hubs benefit from an annual service rather than DIY teardown — Zipp’s own service network or a specialist wheel builder is the safer route given the cost of the hub internals. Store the wheels away from direct heat when not in use, as with any carbon rim.

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