OVERVIEW
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 tire interface and huge drop in weight. The wheel’s internal width is 23mm, ideal for running wider tires 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-deep rim shape, our proprietary Sawtooth™ profile, is our highest performing design for aero efficiency and crosswind stability for AeroBalance™. With Sawtooth, the undulating Hyperfoil™ nodes reduce aerodynamic drag and side force. The result is pure speed for triathlon, time trials, and aggressive road riding. At the center 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 tire bed for easy tire 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 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/Shimano driver bodies
- Zipp graphics applied using Zipp’s ImPress direct-print technology
- Minimum 25mm tire width
- Campagnolo driver body sold separately
- Lifetime Warranty
SPECIFICATIONS
Orientation (wheels) Rear
Size (wheels) 700c
Rim construction Carbon – Hookless
Tire compatibility Tubeless tires only
Rim depth 85mm
Surface texture ABLC HexFin
Brake compatibility Disc (Center Lock)
Rim - inside width 23mm
Rim profile Symmetrical
Rim finish UD fiber, Impress technology
Colour (Decal) Standard
Nipple material Aluminum
Nipple anti-rotation Sapim Secure-Loc
Spoke type CX-Ray - Black
Spoke count 20
Spoke pattern 2 Cross
Hub Cognition V2
Driver body type SRAM/Shimano Road
Colour (hub) Black
Axle type (Wheels) TA 12x142
Axle material Aluminum front & rear
Bearings Cartridge - Stainless Steel
Driver Mechanism Axial Clutch V2, 54 POE
Driver body material Aluminum
Max tire pressure 73psi/5.0bar
Max recommended system weight 250lbs/114kg
Spoke Length DS 230mm
Spoke Length NDS 234mm
Max outside width 27mm