Make the most aerodynamic and seitenwindstabilste rim profile even better? Before this task, the Zipp engineers were when they wanted to develop on the basis of outstanding Firecrest rim profile even more efficient impeller. The NSW wheels succeeded in every way to bring the Firecrest series to the next level. The 58 mm high rim of the 404 NSW is the best selling Rim height in Zipp range since time immemorial. And this is no accident, because the 404 is designed to be fast in any terrain. Easy enough for the mountains and hard sprints, and outstanding aerodynamics and crosswind stability for long solo rides in the wind.
In the development of Cognition hub was first on a goal: maximum speed! This was achieved in several ways. On the one specially adapted to the hubs Swiss ball bearings are installed that guarantee in addition to their enormous durability lowest storage resistance. Secondly, the axial clutch override mechanism for an extremely low resistance makes the rolling process. It is achieved by the use of magnets in place of springs, which press the toothed disks against each other. Internal tests have shown that the Cognition hubs have this system only half of resistance to the best pawl freewheels on the market. Moreover, the 36 locking points of the toothed disks provide a very direct response when back pressure on the pedal comes. For a maximum transmission range or a 1-way drive the Cognition hub can also be equipped with a XD freewheel body.
Showstopper braking surfaces
Among the carbon rims, the braking characteristics of the Firecrest rims are the best on the market. But that was not good enough, the engineers at Zipp. The newly developed showstopper braking surfaces contain silicon carbide. This material is harder than steel and ensures a uniform braking performance on a very high level. Moreover, it is extremely abrasion resistant and the outstanding characteristics of the brake surfaces thus remain over the complete lifetime of the rim. A structure the water and dirt when braking has been incorporated to the wet braking performance to improve in the braking areas, transported faster. In dry conditions the grooves thus the braking performance ensure the heat dissipation and improve on long descents.
ABLC Sawtooth Technology
The rims of the NSW wheelsets equips Zipp from his proven ABLC Dimple design. This helps as the surface of a golf ball to direct the air flow more efficiently through the rim. What is new is the arrangement of the dimples 12 in blocks whose compartments are connected by a sawtooth profile. By this arrangement, the air resistance of the wheels could be further reduced and the positive effect sets in NSW rim even at speeds above 30 km / h.
With the Impress technology, the graphics are printed directly to the impeller. This saves weight and helps ABLC Dimpledesign it to fulfill its task - to eliminate air turbulence.
The impeller may only be used with the following brake linings:
Zipp Tangente Platinum Pro Evo Zipp Tangente High Performance Cork Zip tangent Platinum Pro (first version of the tangent pads) SwissStop® Black Prince SwissStop® Yellow King Bontrager Cork
intended use : Road Material Rim: Carbon Wheels Type: carbon clincher for folding and clincher Rim height: 58 mm Maximum rim width: 27.8 mm Rim width braking surface: 26,40 mm Rim inner diameter: 17,25 mm Spokes: Sapim Cx-ray Count: 18 Hub: Zipp Cognition Freewheel: 10-, 11-speed SRAM / Shimano or 9-, 10-, 11-speed Campagnolo axle type : 5x130 mm quick release Color hub and rim: black, UD Carbon Color Decals: white ImPress graphics maximum tire pressure: 8.62 bar / 125 psi Maximum rider weight: 115 Kg
Weight: 850g (manufacturer)
Delivery: rear wheel bag, rim tape, Zipp Tangente titanium quick release, Zipp Tangente Platinum Pro Brake pads, Zipp Tangente tube , valve extension and manual
Installation: Please use the correct assembly of the instructions manufacturer .
INFO: only available for European + Russian Customers