Zipp 858 NSW Carbon Tubeless Center Lock Disc Wheelset

The Zipp 858 NSW Carbon Tubeless Center Lock Disc Wheelset for fast aero performance

The 858 NSW Disc wheelset from Zipp for time trial and triathlon use has a hookless tubeless rim made of carbon that is up to 85 mm high and 23 mm wide. It weighs over 250 grams less than the previous model and makes you faster than ever thanks to TSE™ technology. The SawTooth™ ABLC HexFin™ pattern on the rim surface ensures top aerodynamics with the greatest possible crosswind stability. The high-performance Cognition V2 hub set includes the freehub body with Axial Clutch V2 technology, which impresses with fast frictional locking and low friction. The 858 NSW wheels are designed for tyres from 25 mm width and are best ridden without an inner tube, although it is also possible to mount tubeless-ready tyres with an inner tube.

Specifications:

Application:

Road, Triathlon & Time Trial

Wheel Size:

28"

Tyre Type:

clincher tyre

Number of Spokes:

20

Brake Type:

Center Lock Disc

Tubeless System:

Tubeless Ready

Technical Information - Rim:

Type:

Zipp NSW

Rim Flange:

hookless

Dimensions (ETRTO):

23-622

Inner Width:

23 mm

Outer Width:

27 mm

Depth:

82 mm/85 mm (depending on section)

Valve Hole Diameter:

SV/Presta (6.5 mm)

Rim Material:

carbon (UD)

Technical Information - Front Hub:

Type:

Zipp Cognition V2 Disc

Over Locknut Dimension:

12 x 100 mm thru-axle

Bearings:

cartridge (stainless steel)

Body Material:

aluminium

Technical Information - Rear Hub:

Type:

Zipp Cognition V2 Disc

Over Locknut Dimension:

12 x 142 mm thru-axle

Bearings:

cartridge (stainless steel)

Body Material:

aluminium

Freehub Body Material:

aluminium

Freehub Body:

Axial Clutch V2 (54 engagement points)

Technical Information - Lacing:

Front Lacing Pattern:

radial (right), double crossed (left)

Rear Lacing Pattern:

2-cross

Spoke Type:

Sapim CX-Ray

Spoke Size:

232 mm/218 mm (front l/r), 230 mm/234 mm (rear l/r)

Spoke Material:

stainless steel

Nipple Type:

Sapim Secure-Loc

Nipple Material:

aluminium

Approved For:

Weight Limit:

115 kg total weight

Air Pressure (max.):

5 bars

Recommended Tyre Width:

28 mm (min. 25 mm)

Tyre Type:

Only approved for tubeless and tubeless-ready tyres. Please make sure that the tyre manufacturer's approval is given for hookless rims.

Features:

• Zipp's most advanced and fastest wheel with wavy rim height for road cycling, triathlon and time trials
• more than 280 grams lighter than the previous model
• optimised tyre bed for easy tyre fitting
• TSE design for more efficiency and reduced rolling resistance
• SawTooth rim and ABLC HexFin pattern for highest aero performance and crosswind stability
• hubs run smoothly when pedalling and at idle speed
• aluminium hub axles
• symmetrical rim tread
• carbon finish with decals applied by direct printing technology
• front can be optionally converted to 9 x 100 mm quick release or 15 x 100 mm thru-axle (end caps available separately)

Technology:

NSW
NSW stands for " Nest Speed Weaponry." 'The Nest' is the nickname the Zipp engineers have given to the windowless high-security research laboratory in a corner of the Zipp factory. This site, or the ground-breaking ideas and designs that emerged from it, became the namesake for an entire series of wheels. The Zipp NSW series is a science, philosophy and mission to develop the fastest, most stable and highest performing wheel components of all times.

ImPress™
ImPress graphics not only provide valuable weight savings, but also allow for a unique and permanent application of Zipp's signature branding.

SawTooth™ ABLC HexFin™
This patented rim shape achieves what conventional aero wheels cannot: it simultaneously reduces aerodynamic drag and lateral wind forces, providing the ultimate AeroBalance™. SawTooth makes this possible through a series of hump-shaped Hyperfoil points along the inner diameter of the rim. Together with the ABLC HexFin recesses (hexagonal dimples) these provide improved airflow. The result is the most powerful Zipp wheelset of all times with lower aerodynamic drag and reduced lateral wind forces at any angle of attack. This is important because the steeper the wind angle, the larger the influence on the handling of the bike.

Axial Clutch V2
Every time you go into neutral, the pawl mechanism of the freehub on conventional hubs acts like a drum brake, costing you speed. The resistance between the hub shell and the freehub body during freewheeling leads to a loss of efficiency, especially on road bikes. As a solution to this, Zipp has developed the Cognition rear hub with Axial Clutch technology, which reduces drag by disengaging the gear mechanism when idling. The Axial Clutch Wave Spring, on the other hand, quickly and securely re-engages it as soon as the rider starts pedalling again. In the V2 version, this technology also results in even faster response, even less friction and improved durability.

Colour Info:

black:

• Rims: black (carbon) with standard decals
• Hubs: black
• Spokes: black
• Nipples: black

Models:

28" set (front 12x100 + rear 12x142) Shimano:

Freehub:

Shimano Road

Gearing:

8-/9-/10-/11-/12-speed

Note:

The assembly of 8-/9-/10-speed cassettes on a Shimano Road Rotor requires a 1.85 mm spacer.

Manufacturer Numbers:

00.1918.697.000 (front) + 00.1918.698.000 (rear)

28" set (front 12x100 + rear 12x142) SRAM XDR:

Freehub:

SRAM XDR

Gearing:

11-/12-speed

Note:

A 1.8 mm spacer is required to mount XD cassettes on an XDR freehub body.

Manufacturer Numbers:

00.1918.697.000 (front) + 00.1918.698.001 (rear)

Only available to European & Russian customers.

Contents:

• 1 x Zipp 858 NSW Carbon Tubeless Center Lock Disc wheelset (front and rear)
• 2 x Center Lock lockrings