The 808 NSW represents Zipp’s more 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 112 mile (180.25km) Ironman® distance. Below details Zipp's NSW Technologies.
The Cognition™ hub set with Axial Clutch™ Technology reduces drag by disengaging the ratchet mechanism when coasting. So you can approach corners at higher speeds, and ultimately, save time. A star-flanged straight-pull hub-shell design on the rear hub distributes the load placed on the hub flange away from the bearings. Zipp have also developed a unique scalloped edge hub-shell design for our front hub. This scalloped design maintains the bearing bore diameter when high radial spoke tension is applied. That means you get bearings that quietly stay in place, roll faster, last longer, and provide a laterally stiffer hub.
Zipp’s ImPress™ graphics technology has been employed, which prints graphics directly on the wheel, to help allow the dimples to do what they were design to do – help control vortex shedding (the rate at which air sheds off the wheel). Managing this is crucial to stability. ImPress graphics also give NSW wheels a distinctive stealthy look.
Zipp’s new Sawtooth dimple design consists of 12 nodes that are specifically 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.
Zipp’s industry leading silicon carbide Showstopper™ brake track continues to evolve and improve, providing unmatched stopping power and modulation regardless of weather conditions or the length of the descent.
• Rim Used: X82NSW
• Hub Used: Cognition
• Rim Depth: 82mm
• Brake Track Width (Centre): 26.4mm
• Internal Width: 17.25mm
• Spokes: Sapim® CX-Ray
• Spoke Count: 24
• Spoke Length Non-Drive: 236mm
• Spoke Length Drive: 234mm
• Spoke Pattern: 2 Cross
• Max Tyre Pressure: 125psi
• Max Tyre Pressure: 8.62 bars
• 11 Speed Compatible Hub: Yes
• Track Adaptable: No
• Dimpled Surface: ABLC™ SawTooth™ Technology
• Nipples: Sapim® Secure-lock Alloy
• External Nipples: Yes
• XD Compatible: Yes
Each Wheel Includes:
• Zipp black titanium skewer
• Zipp valve extender by Silca
• Zipp individual wheel bag
• Zipp Platinum Pro Evo brake pads
• Zipp tube 700c x 19-25mm
• Zipp rim tape 700c x 20mm