specialized giant cube cannondale Mavic Castelli endura altura
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  • Product description

    Performances over the top.

    The brand new Racing Speed XLR with 80 mm carbon rims are been developed with the precious indications of professional athletes.

    The result is extraordinary.

    The aerodynamic design allows for top speed, acceleration and manoeuvrability even with cross winds; the smoothness levels exceed expectations: the CULT™ ball/bearing system is 9 times smoother than that of standard bearings!

    But the Racing Speed XLR does not need an introduction: a name which has been long associated with countless victories and today becomes the wheel of reference for triathlon or road races.


    Technologies:
    • CULT: Ceramic Ultimate Level Technology
    • RDB: Rim Dynamic Balance
    • 2:1: Two-to-one
    • DRSC: Directionated Rim-Spoke Coupling
    • F.I.C: Fulcrum Identification Card - 100% Handmade Quality
    • Traceability

    Key Features:
    • Tyre Type: Tubular
    • Tyre Size: 28"
    • Weight: 1540g
    • Rim Material: Carbon
    • Rim Material Details: Full Carbon, 3k - Carbon fiber finishing
    • Rim Height Category: High
    • Rim Height: Front and Rear 80mm
    • Rim Width: 20mm
    • Tyre Width (Suggested): From 23mm to 32mm
    • Braking System: Caliper
    • Braking Surface/Braking Options: 3k carbon fiber braking surface, 3Diamant treatment on braking surface
    • Front Axle Compatibility: QR
    • Rear Axle Compatibility: QR
    • Front Wheel Spokes: 16 (8 Left + 8 Right)
    • Rear Wheel Spokes: 18, Two to one (6 left + 12 right)
    • Spokes Material: Stainless steel, double butted
    • Spokes Profile Technology: Aero, Straight Pull
    • Nipples: Aluminium
    • Front Hub: Carbon, Aluminium flanges
    • Rear Hub: Carbon, Aluminium oversize flange
    • Bearings: CULT ceramic bearings. Adjustable cup & cones bearing system.
    • Others: Aluminium Axle

    The Rim:
    • High profiles for 80mm tubulars: enables the maximum aerodynamic penetration, reducing friction.
    • The design of the profile details makes the wheel extremely manageable even in a crosswind.
    • 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.
    • Carbon hubs 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:
    • Oversized flange on the drive side provides greater torsional stiffness, increasing reactivity at any change of the rhythm of the pedal stroke.

    New Brake Pads Made Especially Carbon Wheels:
    • Aero spokes (16 front, 18 rear) in stainless steel with variable cross-section, doubled on the drive side (Two-to-One™).
    • Aerodynamic profile in steel ensures the maximum aerodynamic penetration and, thanks to the material employed, lower weight and greater reactivity.
    • Aluminum nipples.

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