Fulcrum Racing Wheels 5 DB

Fulcrum Racing Wheels 5 DB

The Fulcrum Racing 5 LG DB (disc brakes) Tubeless Ready (2 Way Fit) are new for the 2018 range.
Designed for daily use and training in all weather conditions, they have a wider rim width that guarantees better comfort and facilitates the mounting of 25/28 mm tires.

FEATURES

• Oversize hub designed for disc brakes with oversized aluminum flange and high quality sealed bearings that guarantee excellent smoothness.
• The rear wheel has a new hub with a one-piece body that includes the freewheel body and the ratchet seat in a single component, allowing a significant reduction in weight.
• 2:1 Spoke Ratio technology for the rear wheel that doubles the number of spokes on the cassette side for superior stability and improved power transmission.
• 24 spokes at the front, 24 at the rear.
• Plasma treatment for the freewheel body.
• Racing 5 has a deeper top rim channel to make it easier to mount clinchers.
• Compatibility: AFS (Centerlock) only.
• Version: 2-Way Fit (Tubeless Ready).
• Actual weight: 905 g (rear), 770 g (front)

TECHNOLOGIES

2-Way Fit
Tubeless technology was adopted in the automotive industry, then in the motorcycle industry, and finally in cycling. After the debut with the mountain bike, it's time to "put it on the road": and that's what we propose. We have developed the 2-Way Fit™ technology to ensure the perfect compatibility of our tubeless rims even with normal clinchers and inner tubes. The 2-Way Fit™ wheels are perfectly versatile to face any situation. Thanks to a special imprint in the valve area, the assembly of the inner tubes takes place with the utmost precision, keeping the chamber perfectly stable inside the clincher. The valve for tubeless tires is also housed without risk, with the undoubted advantage that there is never any air infiltration due to a non-optimal positioning at the time of assembly. The advantages are undoubted: our tests have shown an unprecedented increase in smoothness. Since there is no inner tube, in fact, friction due to friction with the tire is eliminated and the perfect adherence of the clincher on the rim avoids energy loss. A tubeless tire does not suffer from sudden sagging in the event of a puncture, therefore, a nice advantage in terms of safety. No risk of pinching, then, because there is no inner tube to break.

Dynamic Balance™
The concept is as simple as it is ingenious: balance the mass of the rim joint with a mass of equal value positioned exactly on the opposite side. In the high-end models, this is achieved thanks to a machining on the section of the rim opposite to the spliced one. In the entry-level models, on the other hand, Dynamic Balance™ is achieved thanks to two oversized spokes located in the section opposite the joint. A perfectly balanced wheel during rotational dynamics.

2:1 Two-to-One™ Spoke Ratio
When you push on the pedals, it happens that the rotation of the sprocket set causes a loosening of the freewheel spokes with the consequent loss of tension of the rim. This results in an excessive bending of the whole and an inevitable dispersion of energy. ® Fulcrum has solved this classic cycling problem with its patented 2:1 Two-to-One™ Spoke Ratio, i.e. doubling the spokes in critical areas. In this way there are two spokes that perform the function of one, the loosening and twisting are extremely limited and the transfer of the athlete's energy is much more effective.
Also thanks to this patent, the spoke tensions are more correctly balanced and the fatigue life of the rim, hub and spokes is lengthened.

F.I.C. Fulcrum Identification Card
100% Handmade Quality
® Fulcrum, since its inception, has been characterized by a characteristic that continues to this day: that is, designing, prototyping and industrializing all wheels marked with the red "F".
These, in fact, take shape within the innovative R&D, the advanced department that represents the beating heart of the Italian company. Every single component of the wheel, the materials chosen and the technologies applied are the tangible result of the effort that Fulcrum® makes every day to give you maximum performance and reliability. To ensure the maximum performance and reliability of its products, each project, before the industrialization phase, must pass a series of very strict tests that validate what had been thought and designed up to that moment (fatigue test, crash test, tire burst test, environment test and 100% manual assembly and electronic control).

Traceability
A guarantee of quality
The key word for our products is: traceability. If you find a small label affixed to the Fulcrum® components, do not remove it. This is in fact there to give you the guarantee that in the event of a ascertained defect in a production batch, your component or wheel will be traceable. All this because Fulcrum®, faithful to its mission, demands absolute perfection for its product and safety for its customer.