On Wednesday SRAM announced new 11-speed Zipp 303 Firecrest disc-brake wheels. Coming on the heels of SRAM's 11-speed teaser video, the new wheels point to a hydraulic component of a forthcoming SRAM Red group. SRAM is officially not commenting on a new Red group, but prototype hydraulic levers have been in the works for some time.
A Zipp customer service representative told BikeRadar that the 303 disc wheels will not come as a package with a new Red group, but instead as a separate aftermarket product.
Here are the details on the new 303s:
The Zipp 303 Firecrest Disc-brake wheelset comes in clincher and tubular options with an 11-speed hub. The 45mm Firecrest rims are the same as on the popular 303 Firecrest model. Stainless steel bearings sit in a custom cartridge with two-cross spoke lacing on the front wheel and 'virtual' three-cross in the rear. In the rear configuration, the spokes cross twice, but they exit the hub flange at an angle similar to that of a j-bend spoke in a three-cross configuration. Zipp claims that this results in equal or greater wheel stiffness than a three-cross wheel, plus it uses shorter spokes.
The 303 Firecrest disc wheels will be available in July
The hubs are a new 188 disc model.
The tubulars weigh a claimed 1,435g and come with a suggested rider limit of 250lbs/113kg. The carbon clinchers weigh a claimed 1,680g and come with the same rider limit suggestion.
The 303 Firecrest wheels will be available in July for $2,500/€2,300 with either white or black decals.
The wheels will come in tubular and clincher options