ROTOR Kapic MTB Directmount XC Marathon crankset noir

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  • KAPIC Cranks

    KAPIC is our lightest and stiffest MTB crankset ever inspired by the 6 victories of ROTOR athletes in the legendary Cape Epic, our most successful MTB race to date.

    KAPIC is named in honour of the CAPe ePIC, the most prestigious marathon stage race where the world’s elite riders undertake a combination of gruelling rocky climbs, spectacular forested singletracks and thrilling technical downhills.

    KAPIC has been designed to mirror the strength, agility and speed of the cheetah. The bold aesthetic includes chiselled features and the iconography symbolizes the geometrical patterns of tribal Africa.

    KAPIC's innovative modular system allows you to select each crank component based on your unique bike setup and physical characteristics. It’s available in either BOOST or standard axle to fit different frame standards.

    Direct Mount technology features a proprietary spline interface connecting crank arm, axle and chainring allowing simple assembly and disassembly of your crankset. Select the perfect chainring size for each ride and easily remove & install chainring with only one bolt.

    When combined with Q RINGS, OCP mount technology allows you to adjust your Optimal Chainring Position (OCP) to within one degree increments to precisely configure your unique OCP to maximize power output to your distinct pedaling style.

    Crafted using expert CNC processes, KAPIC includes our Trinity Drilling System, with three internal holes from axle to pedal, giving the dual benefit of an exceptionally light crank with superior stiffness to handle the toughest of MTB routes.

    Customize your crank arms with rubber bumpers in a choice of seven stylish colours: black, blue, green, yellow, red, pink, or orange.

    • Weight: 355 g (170mm)
    • Sizes: 165/170/175 mm


    Characteristics:
    • Spindle: 30 mm
    • Q-Factor: 164 mm standard (Link to standard axle) / 170 mm boost (Link to boost axle)
    • Chainline: 49,5 mm standard / 52.5 mm boost
    • 1x Compatible
    • Material: 6082 aluminum alloy
    • Compatibility: BB30 / Pressfit 30 / BSA / BB89 / BB92
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  • Why Q-rings?
    Biomechanical studies indicate that the effort made with Q-Rings becomes a greater performance and pedaling feeling more rounded and smooth due to their ability to make a better use of the strongest muscle groups while they also compensate the dead spot in pedaling.
    Q-Ring-Round Ring Comparison
    Far from feeling unusual, a Q-Ring feels much rounder than a round ring. A spinscan analysis visualize a cyclists power delivery, with a bar graph indicating the variation from maximum to minimum output and a polar graph showing the rotating shape of the power profile.

    By comparing the left hand Round chainring spinscan and the right hand Q-Ring spinscan below, one can see that Q-Ring graphs are clearly smoother (less variation in torque in the bar graph) and fuller (less of a peanut shape at the weakest point).
    Spinscan
    When one projects a polar plot of a typical spinscan over the varying drivetrain resistance of a 53t Q-Ring during its rotation, the value of a Q-Ring is clearly visible: Maximum power is met with a “56,5t” Time trial sized chainring diameter and minimum power is met with a “50,4” compact size chainring diameter.
    This variation creates the “perfect spin” we all aspire to, that simply isn’t possible with round chainrings. This is because Q-Rings compensate for the weakest zone of the pedalling stroke and maximize use of the most powerful zone.
    Key benefits (based on ROTOR study)
    • All Q-ring TT’s were faster, with an average gain of 1.6 sec and 0.7 km/h (1.8%).
    • All Q-Ring TT’s generated more power, with average increase of 26.7 W (6.2%)
    • Reduced oxygen consumption and heart rate in submaximal tests
    • An immediate performance increase on switching from round rings to Q-Rings
    • An immediate performance reduction on switching back to round chainrings
    • It also appears that the more effort a cyclist exerts, the greater the benefit of Q’s

    Please see this article for more detailed information.
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Ce produit est manufacturé à la main en Espagne