Zipp:
overview
zipp’s 404 firecrest tubeless disc brake is a pro-proven speed weapon for any situation. 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 trial and triathlon, gran fondos, and riding over varied terrain. 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. At the center of the 404 firecrest tubeless disc-brake is a versatile and durable new 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.
Features
versatile aero wheelset for the modern road 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
lifetime warranty
specifications
orientation (wheels): rear
size (wheels): 700c
rim construction: carbon – hookless
tire compatibility: tubeless tires only
rim depth: 58mm
surface texture: ablc sawtooth
brake compatibility: disc (center lock)
rim - inside width: 23mm
rim profile: symmetrical
rim finish: ud fiber, adhesive decals
color (decal): standard
nipple material: aluminum
nipple anti-rotation: sapim secure-loc
spoke type: cx-ray - black
spoke count: 24
spoke pattern: 2 cross
hub: zr1 disc brake
driver body type: sram/shimano road
color (hub): black
axle type (wheels): ta 12x142
axle material: aluminum front & rear
bearings: cartridge - steel
driver mechanism: 6 pawls leaf spring, 66 poe
driver body material: aluminum
max tire pressure: 73psi
max recommended rider weight: 250lbs
spoke length ds: 248mm
spoke length nds: 252mm
max outside width: 28mm
part weight (g): 981