About Zipp 808 NSW Carbon Clincher Front Wheel
The Zipp 808 NSW Carbon Clincher offers a groundbreaking rim shape with greater aerodynamic efficiency and reduced side force as well as a new hubset for increased durability and less drag.
With a rim depth of 82mm, the 808 NSW is designed for triathletes, time trialists or any cyclist looking for increased speed and stability.
The 808 NSW leverages Zipp’s advanced technologies for tangible gains in aerodynamic efficiency and stability. The 808 NSW provides a 3-4 watt savings compared with the bench mark for excellence, the 808 Firecrest, which means an estimated 90 seconds at 40km per hour over the 112-mile (180.25km) Ironman® distance.
Zipp 808 NSW was developed using more than 40 concept studies using CFD (Computational Fluid Dynamics) post-processing software and multiple wind-tunnel trips, including the Aerodynamic Bike Testing Facility at the ARC Wind Tunnel in Indianapolis near Zipp’s facility.
Zipp 808 NSW technology was ridden to 1-2 finishes in two world championship events just as it was being introduced in 2015. In triathlon, Jan Frodeno of Germany won 70.3® World Championships in Austria while fellow German Sebastian Kienle was second. In cycling, Velocio-SRAM Pro Cycling captured gold at the elite women’s team time trial and Boels-Dolmans Cycling Team the silver at the UCI Road World Championships in Richmond, Virginia.
Each wheel includes Zipp Tangente titanium black skewer, Zipp valve extender by Silca, Zipp individual wheel bag, Zipp Platinum Pro Evo brake pads, Zipp tube 700c x 19-25mm and Zipp rim tape 700c x 20mm.
Cognition™ hubset - Zipp has developed a unique scalloped edge hubshell design for their front hub. This scalloped design maintains the bearing bore diameter when high radial spoke tension is applied. Both of these hubshell design elements ensure that bearings quietly stay in place, roll faster, last longer, and provide a laterally stiffer hub. Zipp chose Swiss stainless steel bearings specially made to their specs to provide the longest lasting, lowest friction performance available.
ImPress™ - Zipp’s ImPress™ graphics technology prints graphics directly on the wheel, to help allow the dimples to do what they were designed to do – control vortex shedding, the rate at which air sheds off the wheel. Managing this is crucial to stability. Like the 808 NSW, ImPress graphics also give the 404 NSW a distinctive stealthy look while keeping the rim as light as possible.
ABLC SawTooth™ Technology - Zipp's new Sawtooth dimple design consists of 12 nodes that are precisely clocked to start aerodynamic shearing at a rate of 50hz at a rider speed of 20mph. Sawtooth accomplishes this by inducing small sheet vortices that shed at a low magnitude, but at a higher natural frequency, thus decreasing the laminar bubble effect on the aerodynamically shielded side of the rim’s profile to further reduce high yaw drag and improve crosswind stability. That crosswind stability then imparts peace of mind when the weather turns south while saving watts that would have been expended while attempting to hold your line.
Showstopper™ - When it comes to braking, “good for a carbon rim” wasn’t good enough for the 808 NSW. Zipp wanted braking performance that was better than aluminum rims, and they’ve achieved that goal. Their industry-leading silicon carbide Showstopper™ brake track delivers unmatched stopping power and modulation, regardless of weather conditions or the length of the descent. With Showstopper™ braking performance, you’ll need to find another excuse not to ride on rainy days.
Zipp 808 NSW was developed using CFD (Computational Fluid Dynamics) post-processing software and multiple wind-tunnel trips, including the Aerodynamic Bike Testing Facility at the ARC Wind Tunnel, a short drive from Zipp’s Indianapolis facility. They do this because, as one of their advanced development engineers, Dave Morse, is fond of saying, "The wind tunnel will never be replaced as the gut check for wheel design". The advanced development engineers at The Nest took that data and created the rim shape that became the 404 NSW.
Zipp 808 NSW rims are laid up, molded, and drilled in the USA by Zipp technicians; their expert wheel builders then hand lace the rims to their Portuguese-made Cognition hubset using Belgian Sapim CX-Ray spokes and Secure-Lock nipples to ensure precision alignment and even spoke tension. The end result is a handcrafted wheelset that stays fast and true for years to come.