Fulcrum Racing 4 Disc Brake Road Wheelset – Black

Thanks to the 34mm medium profile, the new Racing 4 DB wheels achieve the perfect balance between aerodynamics, riding precision and versatility. They are ideal for climbing without sacrificing stability once the speed increases on the descents. In fact, these wheels have been chosen by the Cofidis team for their training setup.

Compared to the 2018 model, the aluminium rim profile of the new version has been CNC machined and lightened, and the inner rim width has been increased to 19 mm (the previous model was 17 mm wide) so that it can easily fit 25 mm tyres. The wheels also feature 2 Way Fit technology for clinchers and tubeless tyres (tubeless tape installed and valves included). Aesthetically the new Racing 4 DB line features striking laser-etched graphics that will resist whatever the weather throws at them.

Technologies:

ANTI-ROTATION SYSTEM™
This new system raises the concept of spoking to a new level of performance for road bike and triathlon wheels ( and Mtb too)
The Fulcrum® engineers have redesigned the spokes and the hub housings to create a solid and unmoveable whole. The result is that the spokes

a) will never lose their initial tension, thus keeping the wheel perfectly reactive and centred
b) will remain in the position that has been studied in the wind tunnel tests to ensure the best aerodynamic penetration possible.

F.I.C. FULCRUM IDENTIFICATION CARD – 100% HANDMADE QUALITY
Right from its inception, Fulcrum® has been marked by the feature that continues to this day: that is to design, prototype and industrialise all the wheels characterised by the red “F”.

Indeed these take shape inside of the R&D, the leading-edge 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.

TRACEABILITY

A guarantee of quality

The keyword for our products is traceable.

If you find a little label attached to any Fulcrum® product, do not remove it. It will provide you with a guarantee in case of an ascertained defectiveness of a production batch, and so the component needed or wheel will be traceable.

All this because, devoted to its mission, Fulcrum® demands absolute perfection and safety for its customers.

AFS AXLE SYSTEM™
The Axial Fixing System™ is the solution developed by Fulcrum® to fix the disc brake to the hub. The constraint granted by the butt area of the release mechanism, greater than in familiar standard ones, makes it possible to obtain greater structural rigidity and therefore more precise and powerful braking.

SQUARE MILLING
For the new Racing Zero’s aluminium rim, we decided to keep the triple-milled structure throughout the profile to minimise aluminium thicknesses. Next, our technicians added 3D milling at the base of the spokes. This means less material but the same reliability since, in this particular design, the forces are well distributed over the rim. Triple and “Square” milling enable maximum weight reduction on the rim periphery, producing an extremely responsive wheel.

2WAY – FIT™ READY (ROAD)
It shall be the end user’s sole and full responsibility to choose – on a case by case basis – an adequate and correct rim-tire-pressure combination, as well as to conduct all verifications necessary to ascertain the correctness and safety of such combination.

Without prejudice to the above, and in order to ensure optimum rolling resistance, grip and, most importantly, safety, we recommend that the end-user, in making his choice, also takes into consideration the recommended combinations of hooked rim width, tire width and tire pressure indicated in the chart set forth below.

Due to safety reasons, follow the information of the tire manufacturer regarding minimum and maximum rim width to be used but always ensure that the combination is listed as possible in this table.