Zipp 404 Firecrest Tubular Rear Wheel

. The 404 Firecrest Tubular is built with a the latest iteration of our 188 rear hub, the V9, along with new spoke lacing pattern for the rear wheel refinements that result in improved stiffness and durability The new hub was developed in cooperation of superstar sprinter Mark Cavendish of the Omega Pharma Quick Step Cycling Team and is in use by other top pro cyclists and triathletes including Pete Jacobs and Mirinda Carfrae Cavendish received early hub prototypes in January 2013 and logged 13,000 kilometers 8,078 miles on continually refined variants, including his stage victories at the Giro dItalia and the 2013 Tour de France. His feedback helped optimize the hubs flange geometry, stiffness and weight The new 188V9 hub has larger precision Swiss steel bearings for increased durability. Our new virtual 3 cross lacing on both sides of rear wheel improves stiffness, achieving 3 cross stiffness in a 2 cross pattern with a new spoke geometry. The 188V9 has 25 percent more torsional stiffness than a leading competitive hub. This measure of stiffness is crucial for the direct power transfer to the rear wheel for out of the saddle sprints and climbs. The new hub also is laterally side to side stiffer that its rival or predecessor Features Max recommended rider weight 250lbs Hub Used 188V9 Rim Depth 58mm Brake Track Width center 25 34mm Max Width 26 53mm Nominal tyre Bed Width 18 00mm Spoke Count 24 Spoke Length Non Drive 252mm Spoke Pattern Non Drive 2 cross Spoke Pattern Drive 2 cross Spoke Length Drive 250mm 11 speed compatible hub Yes Track Adaptable No Dimpled Surface Yes Ceramic Bearing Aftermarket External Nipples Yes Weight 805gThe 58mm rim profile is a classic in Zipps arsenal that dates back to the early 1990s. These days, the 404 Tubular is still winning races from the Queen K to LAlpe dHuez. Now, with the advancedFirecrest aero rim shape, our leading all around performer is an even greater threat to win any race on any terrain. This legendary wheelset is availablein two decal options, the stealthy Beyond Black or the distinctive Classic White decals. Both decal options feature black anodized hubs, black spokes and black nipples By controlling airflow around the back half of the wheel, 404 Firecrest is 9 seconds faster than its predecessor 404 model over 40km at a moderate 10 degree wind angle. At higher wind angles, the improvements are even more dramatic in terms of speed and stability. Thats because Firecrest moves the center of pressure closer to the steering axis so crosswinds exert less side force on the wheel. The result is a more stable ride Beyond aerodynamics and stability, the 404 Firecrests wider 27 07mm wide profile offers a slew of other benefits on the road. The upgraded lateral stiffness makes the 404 Firecrest even more responsive to accelerations and more precise when cornering. And its composite structure is designed to absorb impacts by flexing slightly outward which gives you a comfortable ride and long term durability Even with all the improvements from Firecrest technology the 404 Firecrest Tubulars weight is a light 1,445 grams. On the climbs, it goes toe to toe with shallower, less aero rivals. On the flats, it hangs with deeper, less nimble competitors. If any one wheelset can do it all, its the 404 Firecrest BuyZipp Wheels from Chain Reaction Cycles, the World's Largest Online Bike Store.