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From the manufacturer's official website:
"A solid, good-performance wheel with an attractive design. Ideal for daily training."
Racing5 Evolution wheels have taken such a leap forward that if it were not for the name Racing5, which links them to their predecessors, it would be hard to think of it as a simple evolution of the same model. Let's begin from the most significant parameters for products belonging to this bracket: weight and price. The scale now shows 1,755 grams - 90 grams less than the 2006 version. And, despite the numerous improvements, price remains the same.
The hubs are completely new: oversized and provided with flanges for blade hammer-head spokes. Smoothness is ensured by sealed high-quality bearings and they have a new single-piece body which incorporates the freewheel body and pawl carrier in a single component with a considerable reduction of weight.
There is a lower number of spokes, and they now have blade hammer-heads of the Aero type and differentiated thickness, 2-1,5-2. Instead of 24 in the front wheel and 27 in the rear wheel in the old Racing5, there are now only 20 spokes in the Racing5 Evolution front wheel and 24 in the rear. There is radial spoking for the front wheel and the patented Fulcrum® 2:1 Two-to-One™ Spoke Ratio for the rear wheel. Also unchanged is the presence of Dynamic Balance™ which, thanks to two oversized spokes, balances the concentration of the rim joint material during wheel rotation.
The rim is a medium-sectioned one with a height of 24 mm with reinforcing eyelets for the spokes and turned braking surfaces. Racing5 Evolution wheels are available in two black and silver colour versions and are compatible with Campagnolo®, Shimano® and Sram® drivetrains.
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.
Dynamic Balance™
Unlike carbon rims, all the aluminum rims are joined. The joint, though indispensable, entails a concentration of material in a single point and creates an annoying “jump” effect at speed. Fulcrum® has eliminated this annoying problem with the Dynamic Balance™ patent.
The concept is simple and elegant: balance the mass of the joint with a mass of the same weight. 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.
Maximum compatibility
Maximum compatibility All Fulcrum® wheels are compatible with Campagnolo®, Shimano® and Sram® drivetrains. Please consult the technical specifications on the last page for more detail.
For more information, please visit this product's webpage.
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