Campagnolo Shamal Ultra C17 Campy or Shimano – Rim Brake

Fact Sheet of Campagnolo Shamal Ultra C17 Wheelset Clincher

Technology:

Dynamic Balance™
The concept is simple and elegant: balance the weight of the gasket, with an item of similar weight placed on the exact opposite side. For top models, this is obtained by a special operation on the section of the rim opposite the rim joint (Rim Dynamic Balance™ = RDB).

MoMag™
A technology that offers several advantages to the structural integrity of the wheel as well as eliminating the need for rim tape. The name derives from “Mounting Magnet” system, shortened to MoMag™. How does it work? The nipples, once inserted inside the rim via the valve hole, are “guided” to the point of connection with the spoke by means of the magnet. This simple but ingenious system makes it possible to have a wheel without holes on the upper bridge, but with spokes tensioned by traditional nipples! Advantages: No holes on the rim means that the rim is uniform at every point, free from stress points or zones of weakness and, for the clincher profiles no rim tape is required, to the benefit of weight reduction. The advantages are immediately clear: greater rim lifetime, greater resistance to fatigue, the possibility to give the spokes greater tension, and greater stiffness which, in terms of performance, mean greater reactivity and acceleration. But that’s not all. The advantages also include extremely quick and simple maintenance and spoke replacement. All to the benefit of cyclists who choose Campagnolo.

USB™
Campagnolo has a long-standing reputation for the extremely high performance of its hubs in terms of smoothness and reliability. In fact, all the projects are entirely developed in their R&D department Campy Tech Lab™ and they have put obsessive time into taking care of every detail. The hubs with USB™ ceramic bearings (Ultra Smooth Bearings) further enhance the wheels’ smoothness and reduce weight and the need for maintenance. Comparative tests have shown that USB™ bearings are 50 % smoother than standard bearings. Now improving your performance during the race or simply going for a ride with your friends will be easier.

Mega-G3™
Campagnolo has developed an assembly architecture which, compared to a traditional wheel, makes it possible to improve energy transfer, reduce the stress on the spokes on the right and increase transverse rigidity. This is achieved because in G3™ geometry the right-hand side of the rear wheel is fitted with twice as many spokes as the left. The results of G3™ system are truly extraordinary: better transfer of the driving torque, better lateral rigidity, reduction of the stress in the rear wheel spokes. And thanks to the G3™ system that compensates for the forces acting on the 2 sides of the wheel, there are no more wheel vibrations, even for heavier people. G3™ becomes Mega-G3™ thanks to the oversized flange. This solution allows the increase of the torsional stiffness values even more, to the benefit of the overall responsiveness of the wheel.

Spokes anti-rotation system™
Certain Campagnolo wheels feature a spoke anti-rotation system patented by Campagnolo that raises spoke performance to an unprecedented level. Campagnolo designers studied the spoke-hub interface from the ground up to create a coupling system that would keep the spokes always in the exact identical position. This means that the spokes of Campagnolo wheels do not rotate, so there is no loss of tension during use and the aerodynamic penetration is not compromised.

Factory Numbers:

Campa freehub: WH17-SHCFRB
Shimano freehub: WH17-SHCFRX1B