The Zipp 404 Firecrest wheelset has been an icon of cycling speed for the last three decades, and now, it's updated with the latest developments in aerodynamics and tubeless technology.
The 404's heritage as Zipp's icon of speed extends back decades, and its future is even brighter. At 58mm deep, the 404 Firecrest Tubeless is ideal for road races, time trials 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 saving 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.
*Lightest configuration: 12mm through axles and XDR body. No tape or valve included in weight.
FREE Cassette Installation - Order a cassette along with a wheelset and we can install the cassette for free. Cassette installation requires special tools that not all our customers have. The cassette will be professionally installed and torqued to spec. Just add "Please install cassette" to your order notes at checkout and we'll take care of you. Please Note: If our inventory allocation requires that we ship your wheels and cassette from different warehouses, we will not be able to offer this service.
B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.
Brake Compatibility: Centerlock Disc
Tire Compatibility: Hookless
Wheel Features: Disc Brake Compatible
Rim Depth: 58 mm
Hubs: ZR1 DB
Front Hub Spacing: 12x100mm Thru-Axle
Rear Hub Spacing: 12x142mm Thru Axle
Wheelset Weight: 1450 g
Discipline: Road, cyclocross, gravel
Shimano 11sp - 12x100/12x142, Centerlock
Cassette Type: Shimano 11
Mfg PartNum: 00.1918.620.000/00.1918.621.000
XDR 12sp - 12x100/12x142, Centerlock
Mfg PartNum: 00.1918.620.000/00.1918.621.001
Cassette Type: XDR
Mfg Warranty: 72 Mo. Parts & Labor
Warranty URL: https://www.sram.com/en/zipp/campaigns/warranty
I've only had one ride on these so far but love them. They definitely ride smooth accelerate quick and maintain speed. The one difference is they can only be pumped to 72.5psi. So, if you are remotely heavy, as in over 180 pounds the smallest tie you can run is 28mm.