Racing 5 road is the starting point. But the version bearing the “CX” acronym -saved for sports that don’t like clean roads- hides the real true “invisible” novelty inside the hub: a double coating that seals the bearings’ base guarantees smooth performance and long life, even under extreme conditions of use. Racing 5 CX with Shimano Inc. FW body is compatible with 10 and 11 speed sprockets.
2:1 Two-to-One™ Spoke Ratio
When you push on the pedals, the rotational force on the sprocket induces a slackening of the freewheel spokes with a consequent loss of rim tension. This results in undesirable flex of the whole wheel and an unavoidable loss of energy. Fulcrum has solved this classic cycling problem with its 2:1 Two-to-One™ Spoke Ratio patent, by doubling the spokes in the critical zones.
As a result there are two spokes which carry out the function of one, slackening and torsion are limited and the transfer of the athlete’s power is much more effective.
Also, thanks to this system, spoke tensions are balanced more evenly between drive and non-drive sides and the fatigue life of the rim, hub and spokes is lengthened.
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.
For entry-level models, Dynamic Balance™ is obtained by using two oversized spokes in the section opposite the joint. The result is a wheel with perfectly balanced rotational dynamics.
Fulcrum Racing 5 CX Cyclocross Wheelset Specifications:
Maximum Compatibilty: the profile of the rim can hold up to 35mm clinchers.
Rim with reinforcing eyelets: Enables greater spoke tension thanks to the orientation of the spokes with the hub.
Double-butted steel spokes with aero profile: Enable maximum aerodynamic penetration.
Oversized hubs: increase wheel stiffness and reactivity.
Superior quality steel balls on sealed cylindrical bearings: Reduce friction and ensure consistent performance over time.
Double Gasket: Protects the ball bearing seats from water and mud, ensures consistent performance over time.
Quick Release: Steel spine and eccentric, aluminum lever and die. Eccentric-closure system allows cyclist to modulate the pressure necessary for heightened sensitivity to find the proper closure for the block. Easy to use, with a material resistant to wear and tear, rust, and pressure.
Buy Fulcrum Racing 5 CX Cyclocross Wheelset from Chain Reaction Cycles, the world's largest online bicycle store.
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