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Fulcrum Sharq 57 is the natural evolution of the wheel that redefined the concept of performance on the road. It is the new reference point for those looking for speed, precision and reliability, in all conditions and on any route.
With the optimized 2-Wave Rim profile, combined with A3R0 spokes and prestigious USB™ ceramic bearings, it combines smoothness, stability and comfort in just 1,520g. It offers a more refined ride feel compared to traditional high-profile rims. ]
Sharq specs:
2-WAVE RIM FF100
622X25 TC 57-62 mm
CARBON TUBELESS
UNDRILLED RIM ASTM:2
MOMAG TECHNOLOGY
A3RO SPOKES 24/24
2:1 LACING
USB™ ULTRA SMOOTH
CERAMIC
BEARINGS
ENGINEERED IN ITALY
MADE IN EU
WEIGHT 1520 g
[ 2-Wave Rim:
Evolved aerodynamics
The new design of the rim (patent pending) is the result of an experimental process where we analysed the reactions of different solutions to head and side winds, which affect handling and aerodynamics.
We named the resulting shape 2-Wave Rim and is one of the distinctive elements of SHARQ. The rim has a regular symmetrical wave close to the nose which blends with an asymmetrical wave at the sides. The height of the profile varies between 57 and 62 mm, respectively from the highest to the lowest part of the wave. This new design achieves an optimal balance between handling and reactivity, along with excellent aerodynamics.
The new shape, along with a lamination featuring a mix of proprietary Fulcrum FF100 carbon fibres and resins, has allowed us to create a light and reactive rim. The total weight for the pair of wheels is merely 1.520 grams.
Wind tunnel and road tests have shown that with 30 mm tires there is a 10% improvement in aerodynamic efficiency compared to the Sharq 42, at 45 km/h. Sharq 57 is therefore faster in real world conditions.
Aerodynamic advantages
of the
→_ new A3RO spokes
The radial front lacing and the attentive manual assembly guarantee a prompt and precise response, which is never nervous. The undrilled rim bed maintains the continuity of the fibres, improving both elasticity and power transfer.
With this in mind, to increase the performance of SHARQ, we have developed A3RO, a new flat steel spoke, 3 mm wide and 0.8 mm thick, which provides considerable aerodynamic advantages. We have also revised the hub-spoke interface. The hole has two additional gaps paired with a specific flattening of the base of the spoke, so that it can remain aligned and not rotate, guaranteeing a constant aerodynamic support.
The spokes never touch each other (no-touching spokes), ensuring that they maintain their long term tension and therefore provide the same level of performance throughout the life of the product, without the need for any mechanical interventions to remedy any losses in tension.
The design of the hub follows the minimalist lines seen on the Speed wheels, with Cup & Cone technology. The bearings used are USB™ ceramic ball bearings, rolling on through axles with adjustment ring, to achieve an extremely precise preload and maximum smoothness.
ultimate
ride feeling
The 2-Wave Rim design improves control and stability as well as aerodynamics, reacting perfectly to turbulence, also with side winds and at high speeds.
SUPERIOR HANDLING
Compared to the Sharq 42, the handling drops by only 1%, an almost imperceptible value considering the significant increase in the height of the profile. If, on other hand, we compare this with the road version, the Speed 57, the Sharq 57 shows an improvement of +6.3%, offering a more fluid, precise and intuitive ride.
IMMEDIATE COMFORT
The wider inner channel (+2 mm compared to the Speed 57) allows for the use of wider tires at lower pressures, thus improving the absorption of the vibrations and contributing, as is well known by now, to reducing rolling resistance.
The comfort has been further improved by the precise control of the carbon fibre in the walls of the rim. Wider walls allow for a more effective elastic response, which can better absorb vibrations.
In-house tests with 30 mm tires, at pressures between 2.5 and 4.5 bar at speeds between 30 and 40 km/h, have confirmed the greater absorption of the vibrations in all conditions, compared to Sharq 42 and Speed 57.
SHARQ FAMILY COMPARISON
SHARQ 57
Profile height: 57–62 mm
Bearings: USB™
Weight: 1.520 g
SHARQ 42
Profile height: 42–47 mm
Bearings: USB™
Weight: 1.440 g
