Zipp 858 NSW Hookless Disc Brake Carbon Shimano Rear Wheel

Built for cyclists who demand aerodynamic excellence without compromise, the Zipp 858 NSW Hookless Disc Brake Carbon Shimano Rear Wheel sets a new benchmark in speed and stability.

Designed with Total System Efficiency (TSE) technology, it delivers reduced weight, lower rolling resistance, and improved ride quality, all while maintaining the deep-rim aero performance serious riders expect.

The 858 NSW excels across a range of disciplines including triathlon, time trialing, and high-speed road racing. Its hookless, tubeless-ready carbon rim combines a seamless tire interface with significant weight savings, matching the weight of shallower wheels without sacrificing depth. The patented Sawtooth rim profile, with depths varying from 82mm to 85mm, offers maximum aerodynamic advantage and stability in crosswinds, making it ideal for courses where variable conditions challenge both rider and equipment.

A wide 23mm internal rim width allows for wider tire setups at lower pressures, enhancing grip, reducing rolling resistance, and smoothing road vibration to keep the rider fresher for longer efforts. The Cognition V2 hub with Axial Clutch V2 ensures quick engagement and smooth rolling efficiency, while the durable Carbon Internal Reinforcement (CiR) technology lightens the wheel by over 243 grams compared to its predecessor without compromising strength.

Key Features

• Zipp’s premier deep-rim wheel for road racing, triathlon, and time trials

• More than 243g lighter than the previous model for faster acceleration and handling

• Hookless, tubeless-ready rim profile promotes easier tire installation and a smoother interface

• Total System Efficiency (TSE) reduces rolling resistance and increases rider efficiency

• Sawtooth rim design with Hyperfoil nodes and HexFin ABLC dimples maximizes aerodynamic performance and crosswind stability

• Cognition V2 hubset with Axial Clutch V2 for reduced drag and improved rolling performance

• Includes 12mm thru-axle end caps and Center Lock rotor interface with lockring

• Compatible with SRAM XDR and SRAM/Shimano driver bodies (Campagnolo body sold separately)

• Zipp ImPress graphics technology for durable and streamlined aesthetics

Technical Specifications

• Size: 700c

• Rim Construction: Carbon – Hookless

• Tire Compatibility: Tubeless tires only

• Rim Depth: 85mm

• Brake Compatibility: Disc (Center Lock)

• Internal Rim Width: 23mm

• Rim Profile: Symmetrical

• Rim Finish: UD fiber, ImPress technology

• Nipple Material: Aluminum

• Spoke Type: CX-Ray – Black

• Spoke Count: 20

• Spoke Pattern: 2 Cross (non-drive side), Radial (drive side)

• Driver Body Type: SRAM XDR, SRAM/Shimano Road

• Axle Type: TA 12x100 (front), TA 12x142 (rear)

• Bearings: Stainless Steel Cartridge

• Driver Mechanism: Axial Clutch V2, 54 points of engagement

• Maximum Tire Pressure: 73psi / 5.0 bar

• Max Recommended System Weight: 250lbs / 114kg

• Spoke Length (Drive Side): 218mm, 230mm

• Spoke Length (Non-Drive Side): 232mm

• Maximum Outside Width: 27mm

• Rear Wheel Weight: 811g