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Fulcrum Racing Speed 40C + Speed 55C Clincher Wheelset

Fulcrum Racing Speed 40C + Speed 55C Clincher WheelsetFulcrum Racing Speed 40C + Speed 55C Clincher Wheelset
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Description

About Fulcrum Racing Speed 40C + Speed 55C Clincher Wheelset

Every cyclist has their own preferences once on the saddle, different situations may call for a different bike set up. A side wind, frequent changes in pace, winding yet fast routes…

Devised for more expert, demanding cyclists accustomed to fast cycling and careful about the details on their bikes, the Speed range already offers an adequate choice with two different depth rims: 40 mm or 55 mm. Medium – low or medium - high. 

From here, we have spoken with the pros on our teams, who have often chosen to combine the two sizes depending on the race route. We then went back to thinking about the different possible situations on the road and we were naturally led to imagine a third possibility: the union of the pluses offered by these two versions when necessary.  

And the outcome was “Combo”, 40 mm at the front, 55 mm at the back, an additional option for the full carbon range. It will be available in tubular “T” and clincher “C” versions.  Maximum stiffness and transfer of power at the back, improved steering and agility at the front. The perfect mix? The road will decide.

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 their R&D department and they 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-OneWhen 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.

DRSC - Directionated Rim - Spoke Coupling - Exclusive rim/spoke coupling system. It allows the rim, spokes, nipples and hub to align properly with the same tensioning value in all areas.

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 Right from its inception Fulcrum has been marked by 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 their products is: traceable.

If you find a little label attached to any Fulcrum product, 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.

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.

Rim Full Carbon Technology Full carbon Fulcrum rims are built using combinations, developed in the laboratory, of different types of fibre, including UD and the famous 90-degree 3K of models at the top of their range.

To build them they developed a special HTG (high transition grade) resin, whose glass transition point is at a higher temperature than any other fibre used in the bicycle industry.

This gives incomparable performance when braking.

Unrilled Rim Bed - No holes on the bridge connector means that the rim is uniform at every point, free from critical areas subject to stress.

The advantages are immediately clear: less weight, longer lasting rims, greater resistance to fatigue, the possibility of giving the spokes more tension and more stiffness which, in terms of performance, means improved responsiveness and acceleration.

Cup & 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.

Carbon HubsIn 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.

Differniated Rim Height - Two different heights for front and back. A bigger challenge in construction, but necessary to achieve the very best.

The lower front wheel improves handling, limiting weight to a maximum and also mass involved when turning and relaunching.

The rear rim is higher and more solid, to transmit all the power to the wheel and increase stability.

Oversize FlangeThe 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.

AC3 - All Conditions Carbon Control - Braking directly exploits the brake pad’s contact on the fiber, improving grip and dissipation of water and moisture from the surface, allowing it to work immediately in ideal conditions and give better results.

Specifications

Tyre Type: Clincher

Tyre Size: 28"

Weight: 1450g

Rim Material: Carbon

Rim Material Details: Full Carbon, "Twill" - Carbon Fiber Finishing

Rim Height Category: Medium High

Rim Height: Front 40mm, Rear 55mm

Rim Width 24.2mm, ETRTO 17c

Tyre Width: From 25mm to 50mm

Braking System: Caliper

Braking Surface/braking Options: "Twill" Carbon Fiber Braking Surface. Ac3 Treatment On Braking Surface

Front Axle Compatibility: QR

Rear Axle Compatibility: QR

Front Wheel Spokes: 18 (9 Left + 9 Right)

Rear Wheel Spokes: 21, Two To One (9 Left + 9 Right)

Spokes Material: Stainless Steel, Double Butted

Spokes Profile Technology: Aero, Straight Pull

Nipples: Aluminum

Front Hub: Carbon, Aluminum Flanges

Rear Hub: Aluminum, Aluminum Oversize Flange

Bearings: USB Ceramic Bearings. Adjustable Cup & Cones Bearing System

Others: Plasma Treated HG Freewheel. Aluminum Axle

Weight Limit: 109 Kg (Cyclist)

More About The Manufacturer Fulcrum

Fulcrum Wheels s.r.l. designs wheels and components for racing bikes and distributes them in over 30 countries worldwide. They were based on the idea of three aerospace engineers who are passionate about bicycles. The strong points of this young company include the use of unique patents, ongoing technological research, and the attractive and young-spirited design.