specialized giant cube cannondale Mavic Castelli endura altura
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  • Product Description

    Red Wind XLR 50

    Simply extraordinary.

    Two-wheel enthusiasts were waiting for the Fulcrum® “aluminium/carbon” wheels and the wait has been rewarded.

    Indeed the Red Wind™ XLR represent the top-of-the-range road bike wheels in this segment thanks to their outstanding performance: the special aluminium/carbon structure combined with the oversize hub and spokes with the DRSC™ fastening system (Directional Rim-Spoke Coupling) give the wheel incredible responsiveness.

    Available in the Dark Label and Bright Label version.

    • Cult™ - Ceramic Ultimate Level Technology™
    • Dynamic Balance™
    • 2:1 Two-to-One™
    • DRSC™ - Directionated Rim-Spoke Coupling
    • Anti-Rotation System™
    • F.I.C. Fulcrum Identification Card - 100% HANDMADE QUALITY
    • Traceability

    Key Features:
    • Tyre type : clincher
    • Tyre width : from 23 mm to 32 mm
    • Weight : 1590 g
    • Wheel material : Aluminium/Carbon
    • Rim material : Aluminium and Carbon, 3K fibre
    • Profile height : High
    • Rim height : front and rear: 50 mm
    • Rim width : 20,5 mm, ETRTO 15C
    • Braking system : Caliper
    • Braking surface : Aluminium braking surface, turned
    • Front axle compatibility : QR
    • Rear axle compatibility : QR
    • Spokes: front : 18
    • Spokes: rear : 21 (7 left + 14 right), Two to one
    • Spokes: material : Stainless steel, double butted
    • Spokes: profile technology : Aero, straight pull
    • Nipples : Aluminium
    • Front hub : Aluminium, Aluminium flanges
    • Rear hub : Aluminium, Aluminium oversize flange
    • Bearings : CULT ceramic bearings, Adjustable Cup & Cones bearing system
    • Other : Aluminium Axle

    Road bike rims - Red Wind XLR 50

    The Rim:
    • Integrated aluminium/carbon rim structure: the exclusive coupling system of the aluminium rim and carbon structure makes these road bike rims extremely rigid, it allows for excellent responsiveness levels and durability of the wheel.
    • Exclusive pressing system for the rim in unpainted carbon enables an extremely limited weight and a smooth surface free from imperfections.

    Hubs and Flanges:
    • CULT™ ceramic bearings, the maximum in terms of smoothness thanks to the use of special reduced lubricant bearings.
    • The cone and cup technology with absolute performance: easy ball/bearing adjustment – reduces possible ball/bearing play – precision operation – maintains performance over time.
    • Aluminum hub body (gives the wheel a high degree of lateral stiffness and reduces weight to the minimum) with oversize aluminum flange and Two-to-One™ technology to transmit all the power to the ground.
    • Aluminum axle reduces the overall weight of the wheel.

    Oversize Flange:
    • Increases the torsional stiffness, increasing reactivity at each change in rhythm of the pedal stroke.

    Spokes and Nipples:
    • Aerodynamic profile in steel ensures the maximum aerodynamic penetration and, thanks to the material employed, lower weight and greater reactivity.
    • Self-locking oversize aluminium nipples: they reduce the peripheral mass of the road bike wheels to a minimum, thus increasing responsiveness.
    • The nipples' self-locking system gives the correct tension of the spokes and does not require any maintenance.

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