OVERVIEW Zipp’s ultimate aero weapon is faster than ever, thanks to our proprietary Total System EfficiencyTM technology. With TSETM, 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 wheel’s internal width is 23mm, ideal for running wider tyres with lower pressures for decreased rolling resistance. That’s how TSETM technology helps you conquer the four barriers to speed: Wind Resistance, Gravity, Rolling Resistance, and Vibration Losses. The 858 NSW’s undulating 82mm-deep rim shape, our proprietary SawtoothTM profile, is our highest performing design for aero efficiency and crosswind stability for AeroBalanceTM. With Sawtooth, the undulating HyperfoilTM nodes reduce aerodynamic drag and side force. The result is pure speed for triathlon, time trials, and aggressive road riding. At the centre of the 858 NSW is the Cognition V2 Hubset re- engineered with an updated 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 300 grams lighter that previous model Optimized tyre bed for easy tyre installation TSE for greater efficiency and reduced rolling resistance Sawtooth rim with Hyperfoil nodes 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 pedalling or coasting. Its Axial Clutch V2 technology reduces drag and lowers friction Ships with 12mm front and rear end caps Centre locking rotor interface. Lockring is included with the wheels XDR or SRAM/Shimano driver bodies Zipp graphics applied using Zipp’s ImPress direct-print technology Minimum 25mm tyre width Campagnolo driver body sold separately Lifetime Warranty SPECIFICATIONS Size (wheels) 700c Rim construction Carbon - Hookless tyre compatibility Tubeless tyres only Rim depth 85mm Brake compatibility Disc (Centre Lock) Rim - inside width 23mm Rim profile Symmetrical Rim finish UD fibre, Impress technology Nipple material Aluminium Spoke type CX-Ray - Black Spoke count 20 Spoke pattern 2 Cross, Radial drive, 2 Cross non-drive Driver body type SRAM/Shimano Road Axle type (Wheels) TA 12x100, TA 12x142 Bearings Cartridge - Stainless Steel Driver Mechanism Axial Clutch V2, 54 POE, n/a Spoke Length DS 218mm, 230mm Spoke Length NDS 232mm, 234mm Max outside width 27mm