Fulcrum Racing Zero Disc Brake Clincher

The aim was clear - to design a wheel with disc brakes, with the same soul of the original "Racing Zero".

Creating it wasn't easy, given the premises and the myth it referred to.

They believe theyhave succeeded, developing a design along the same lines as that of conventional brakes.

The riding experience is the same and equally exhilarating until you come to the extreme rush at a hairpin bend.

Technologies

Rim 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.

USB Ceramic Ultra Smooth Bearings - Fulcrum 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 our R&D department and we have put obsessive care into taking care of every detail.

The hubs with USB ceramic bearings (Ultra Smooth Bearings) further enhance the triathlon and road bike wheels' smoothness and reduce weight and the need for maintenance.

2:1 Two-to-One - 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.

2:1 Two-to-OneSpoke Ratio - Disc Brake -A system that is as simple as it is effective, the result of the ingenuity of Fulcrumengineers and attentive observation of the results of the tests performed on the wheels on a daily basis.

These tests made it possible to understand that the forces that act on the sides of the wheels, and therefore on the spokes, are extremely different; but what's more, the differences between the front and rear wheels are also evident and significant. The front wheel, in fact, has to remain stable even during braking of the disk on the left side, and the rear wheel, in addition to the sprocket set, has to compensate for the traction of the force on the chain side.

MOMAG - A magnet and lots of ingenuity. This was what led to the patent for the well-tested "Mounting Magnet" system, or MoMag.

Anti-Rotation System - This new system raises the concept of spoking to a new level of performance for road bike and triathlon wheels.

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 have been studied in the wind tunnel tests to ensure the best aerodynamic penetration possible.

F.I.C. Fulcrum Identification Card - 100% Handmade Quality

Plasma Electrolytic Oxidation - The Plasma Electrolytic Oxidation treatment is a process made through electrical discharges that take advantage of heavy materials and free electrolytes.

This process is an advanced oxidation process of light alloys of aluminum, magnesium and titanium. This special project was developed a few decades ago in the Russian laboratories to improve characteristics of the lightweight materials used in the space and military spaces

The Plasma Electrolytic Oxidation process gives the alloy surface very special characteristics regarding hardness and wear resistance.

Traceability- A guarantee of quality

The keyword for our products is: traceable.

If you find a little label attached to any Fulcrumproduct, do not remove it. It will provide you 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 the absolute perfection and safety for its customers.

AFX Axle System -The Axial Fixing Systemis the solution developed by Fulcrumto 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.

One Hub Fits All

Wide Rim Tech- Fulcrum's R&D department, following requests from the competition circuit, has worked to create rims that are wider than before, about 4 mm or more than previously. This technical choice provides an ideal basis for 25/28mm tyres, the sizes currently popular.

This ensures stability, excellent handling and superior comfort.

Cup and Cone- The cup-and-cone bearing differs from the classic cartridge bearing because it works in perfect alignment with the forces involved, weight and thrust from the frame, as the bearings run in a race positioned directly opposing these forces.

Hiegh Strength Aluminum - Special aluminium - the best aluminium wheels require carefully chosen materials. For "High strength Aluminum", Fulcrum R&D uses only the best aluminium alloy 6082, with artificial ageing T6 temper that stabilises the alloy and gives it maximum life and reliability.

Aluminium 6082 has the highest strength of the 6000 series and has replaced 6061 in many applications. It is generally used for high-stress applications.

Carbon Hubs -In line with their aim to save every possible gram of weight and to choose the most advanced technological solutions, the R&D department has developed a seamless carbon hub.

The fibre selected is woven at 90 degrees, for enhanced balance of torque when pedalling.

Plasma Freehub - The Plasma treatment makes the aluminium especially hard and resistant to surface abrasion and wear. This has allowed thickness of materials to be reduced to a minimum, achieving advantages of lighter weight, while maintaining lifespan and reliability.

Oversize Flange - The Oversize Flange was developed from the need to create a system to transmit every watt to the ground without dispersion, stiffening the wheel system where necessary, without having to add spokes or superstructures that increase weight.

The oversize flange uses physics to solve the problem. It increases dishing and enables spokes to be shortened. Doubling the spokes creates a balanced system that is excellent at transmitting torque.

Monoblock HUB for Disc -The rear hub of a top-quality disc brake wheel is a technical problem to be solved. Fulcrum's R&D department found itself facing a fundamental choice: on which side to put the oversize flange of the Two-to-onesystem? Disc or sprocket side? Without question - must stay on the sprocket side.

To combat the loss of braking power from flex and torque of the connector between the two sides of the hub, a special one-piece system has been devised with internal stiffening ribs.

Specifications

Compatibility Table