Clincher
The main and actual fulcrum research and development department designers had a tough time reaching the set goals, similar to a rider trying to conquer that "mythical" summit. This rim's weight (less than 1850g), and all test results show, once again, the greatness of this design.
The new hubs are made from straight spokes: aluminium-made and with a large flange on the crankset side of the rear wheel, which results in a significant increase in reaction.
The front wheel has 20 steel spokes with a 2mm round section. The spokes of the rear wheel have a 2:1 ratio Two-To-OneTM: 8 2mm round spokes, radially laced for the left side. On the dirverside there are twice as many straight spokes, with the same 2mm section. In order to control wear racing models, Fulcrum has included its new Wear indicator system. Racing 7 Wheels are compatible with Campagnolo, Shimano Inc. and Sram Co. drivetrains.
Clincher CX
The main difference, apart from "CX" following "Racing 7", lies inside the new hub with a double seal to protect bearings from dust and mud, guaranteeing the smoothness and long life components. The new double-coated hubs were designed for straight spokes: made of aluminium, with large flange on the driverside of the rear wheel, which improves power transfer.
The front wheel has 20 steel spokes with 2mm round section. The spokes of the rear wheel have a 2:1 ratio. Two-To-OneTM: 8 2mm round spokes, radially laced for the left side; while on the driveside there afre twice as many straight spokes, with the same 2mm section.
In order to control wearing Racing 7CX's Fulcrum has included the new Wear indicator system. Racing 7 CX's are compatible with Campagnolo, Shimano Inc. and Sram Co. Transmission.