ZIPP LAUNCHES NEW 404 FIRECREST AND 454 NSW WHEELSET

No more rim brake versions

Zipp is probably the most iconic brand when it comes to wind-optimized wheels and the 404 wheelset has been the gold standard. The 404 is likely the most aero-tested wheel in the world and while a lot has changed in its 31 years of development, Zipp has made some significant changes with the new Zipp 404 Firecrest as well as the new 454 NSW. When speaking to Zipp about the new offerings they also mentioned that much of the weight savings was in the rim construction itself and that there was minimal if any weight saved in hub design.

Zipp tells us that five years ago these wheels would have never been produced because they were so hyper-focused on aero gains but it seems they have grown smarter (and faster) with age. They offered loads of test data and extensive stats that inevitably showed that because of the added width of the new internal rim profile the wheels are almost 1 watt slower aerodynamically. However, when testing their new standard of TSE (Total System Efficiency) with optimized (much lower than tradition) tire pressures the new 404 is 4.4 watts more efficient and the 454 NSW is a stunning 12.3 watts.

Zipp also mentioned that they have no plans of updating any of their rim brake offerings. They said the limitations that the system puts on the design of a wheel make it obsolete. They will continue to sell the current Firecrest offerings but starting in January they stopped production of the rim brake NSW line as well as other models to compensate for the demand for their more modern offerings. This shouldn’t come as a shock to anyone, since the industry has struggled to maintain stock levels of everything and rim brakes are quickly being phased out.

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ZIPP 404 Firecrest Disc-Brake

At 58mm deep, the 404 Firecrest Tubeless is ideal for road races, time trial and triathlon, and gran fondos. The wheelset’s 23mm internal width is perfect for running wider tubeless tires at reduced air pressure. That is a vital component of Total System Efficiency, or TSE, an approach to speed on ever-changing roads and riding conditions. Specifically, TSE focuses on overcoming specific barriers to speed: wind resistance, gravity, rolling resistance, and vibration losses. Zipp’s ABLC Sawtooth Technology uses an intricate dimpling pattern to improve aero efficiency. Zipp’s use of hookless (straight side) rims in the 404 Firecrest is integral to Making You Faster. With hookless, the transition between the tire and the rim is more seamless and aero. Zipp’s hookless rims have more efficient resin distribution, which means lighter, stronger wheels.

Outdoor testing commissioned by Zipp revealed the real-world gains of Zipp TSE. A bike-and-rider system weighing 85kg (187lbs) on the new 404 Firecrest with 25mm tires required 286 watts to maintain a speed of 40kph. That’s a 4-watt savings compared with the previous model 404 Firecrest.

At the center of the 404 Firecrest Tubeless Disc-brake is a versatile and durable hubset, the German-engineered ZR1 DB. If you had to choose just one wheel for road riding and racing, the 404 Firecrest Tubeless Disc brake is a savvy and speedy choice.

ZIPP 404 FIRECREST FEATURES:

– Versatile race wheelset for the modern road race bike with tubeless and hookless rim profile
– Optimized tire bed for easy tire installation
– Wide 23mm rim profile creates a better tire interface to be fast on or off the road
– New ZR1 DB hub is engineered in Germany with better seal design for improved durability and quicker response with 66 points of engagement
– Ships with 12mm front and rear end caps
– Center locking rotor interface. Lockring is included with the wheels
– XDR or SRAM/Shimano driver bodies
– Campagnolo driver body sold separately
– The 404 Firecrest Tubeless Disc-brake is about 370 grams lighter than its predecessor
– 1450g wheelset (no valves or rim tape)
– Front 660g Rear 790g
– Lifetime Warranty

The real reason disc brakes are the future

454 NSW Tubeless Disc-Brake

It’s aerodynamically efficient and stable in all wind conditions. What’s more, a wider rim is designed for tubeless tires at lower pressure for reduced rolling resistance and vibration damping, so you’ll lose as little energy as possible out on the road. This wheel is optimized for 25mm tubeless tires for all-out speed.

The 454 NSW features Zipp’s most advanced technologies. Its undulating 58mm Sawtooth rim shape with Hyperfoils is our most aerodynamic and stable wheel in the 404 family. The 454 NSW Tubeless Disc-brake wheelset is roughly a pound (more than 400 grams) lighter than its predecessor!

Zipp’s use of hookless (straight side) rims in the 454 NSW is integral to Making You Faster. With hookless, the transition between the tire and the rim is more seamless and aero. Zipp’s hookless rims have more efficient resin distribution, which means lighter, stronger wheels.

Outdoor testing commissioned by Zipp revealed the real-world gains of Zipp Total System Efficiency (TSE). A bike-and-rider system weighing 85kg (187lbs) on the new 454 NSW with 25mm tires required 278 watts to maintain a speed of 40kph. That’s a 10-watt savings compared with the previous model 454 NSW.

At the center of the 454 NSW is the Cognition V2 Hubset re-engineered with an updated Axial Clutch V2 mechanism for quicker engagement, lower friction, and improved durability.

ZIPP 454 NSW FEATURES:

– Cognition hubset rolls efficiently whether you are pedaling or coasting with Axial Clutch V2 technology
– The 454 NSW Tubeless Disc-brake is roughly a pound (more than 400 grams) lighter than its predecessor
– TSE for greater efficiency and reduced rolling resistance
– Sawtooth rim with Hyperfoil nodes and HexFin ABLC dimple pattern for top aero and crosswind- stability performance with an undulating 53/58mm rim depth
– Zipp graphics applied using Zipp’s ImPress direct-print technology
-XDR or SRAM/Shimano driver bodies
– Ships with 12mm front and rear end caps
– Center locking rotor interface. Lockring is included with the wheels
– Campagnolo driver body sold separately
– 1358g wheelset (no valves or rim tape)
– Front 631g Rear 727g
– Lifetime Warranty

Pricing

Zipp 404 Firecrest
$1900

Zipp 454 NSW
$4000

For more info head to www.sram.com

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