Zipp’s ultimate aero weapon is faster than ever, thanks to our proprietary Total System Efficiency technology. With TSE, the 858 NSW Carbon Tubeless Disc-brake wheelset features a tubeless and hookless rim profile for seamless tyre interface and huge drop in weight. The 858 gives you the benefits of our deep rims at weight typically associated with rims that are 20mm shallower.
The wheel’s internal width is 23mm, ideal for running wider tyres with lower pressures for decreased rolling resistance. That’s how TSE technology helps you conquer the four barriers to speed: Wind Resistance, Gravity, Rolling Resistance, and Vibration Losses. The 858 NSW’s undulating 82mm-85mm deep rim shape, our patented Sawtooth profile, is our highest performing design for aero efficiency and crosswind stability.

The 858 NSW features Zipp’s Carbon Internal Reinforcement (CiR), which creates a rim that is 10% lighter and just as strong as previous wheels. The result
is pure speed for triathlon, time trials, and aggressive road riding. What’s more, while this wheelset is optimized for tubeless tres, you still have the option to run tubeless ready tres with tubes. The 858 NSW is fastest with a 28mm tre. In triathlon, running wider tubeless tres at lower pressure makes you faster while also smoothing out the ride so your body is fresher for the run. Disc brakes also offer more reliable speed modulation and braking power in all weather conditions. At the center of the 858 NSW is the Cognition V2 Hubset engineered with the Axial Clutch V2 mechanism for quicker engagement and lower friction as well as improved durability.

Features
Zipp’s most advanced and fastest deep-rim wheel for road, triathlon, and time trialing
More than 280 grams lighter that previous model
Optimized tre bed for easy tire installation
TSE for greater efficiency and reduced rolling resistance
Sawtooth rim and HexFin ABLC dimple pattern for top aero and crosswind-stability performance with an undulating rim depth
Cognition V2 hubset rolls efficiently whether you are pedaling or coasting. Its Axial Clutch V2 technology reduces drag and lowers friction
Ships with 12mm front and rear end caps
Center locking rotor interface. Lockring is included with the wheels
XDR or SRAM/ShimanoTM driver bodies
Zipp graphics applied using Zipp’s ImPress direct-print technology
Minimum 25mm tre width
CampagnoloTM driver body sold separately
Lifetime Warranty

Specifications
Size (wheels) - 700c
Rim construction - Carbon Hookless
Tyre compatibility - Tubeless tyres only
Brake compatibility - Disc (Center Lock)
Rim inside width - 23mm
82/85mm-deep rim profile
Driver body type - SRAM XDR or SRAM/Shimano Road
Axle type (Wheels) - Front TA 12x100, Rear TA 12x142
Bearings - Cartridge Stainless Steel
Driver Mechanism - Axial Clutch V2
Minimum 25mm tyre width
Optimised for 28mm tyres

Mfr Claimed Weight
1530g