ROTOR RVOLVER road rear hub QR black  NEW

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  • RVOLVER Rim Brake Rear Hub

    Lightweight durable design
    With the desire to empower you to improve your cycling performance we adopted a fresh approach when designing our new RVOLVER hub technology. The innovative patent-pending floating clutch system provides you with an incredibly lightweight yet durable hub solution.

    Masters of CNC
    Employing our expertise in CNC aluminum manufacturing we saved precious weight by connecting the ratchet ring to the hub’s shell without threaded parts.

    All components are machine CNC’d from ultralight 7075 aluminum with fewer steel parts and a simplified internal design for ease of assembly and maintenance.

    Maximum momentum, minimum friction
    The inventive sliding clutch system disengages the ring from the pawls when you stop pedaling, reducing friction so you gain maximum momentum when coasting or on high speed descents.

    When you resume pedaling, the ratchet ring instantly re-engages to deliver a responsive power transfer that you will feel on every single ride.

    Engineered for simplicity
    RVOLVER’s “Intelligent Flange Design” features evenly spaced, notched flanges again reducing overall weight and allowing easier wheel assembly.
    The hub’s “Multi Compatibility Design” means that it’s also compatible with most frames and forks currently available.

    Built to last
    With bearings that provide the best compromise in size and weight and deliver a superior load carrying capacity, RVOLVER hubs are built to last each time you upgrade your wheels and bicycle.

    Intelligent flange design
    Evenly spaced notched flanges reduce overall weight and allow for easier wheel assembly

    Lightweight rear rim brake hub for road. This high precision rear hub is 100% CNC machined. Contact-free flange seals with a single silicon seal in the rear hub improve rolling efficiency and durability. Designed for 2X installation on both sides (3X version 2:1 in the right side).

    Weight:

    • RVOLVER Rear Hub Rim Brake J-Bend 20H QR: 199.1g
    • RVOLVER Rear Hub Rim Brake J-Bend 24H QR: 199.4g
    • RVOLVER Rear Hub Rim Brake J-Bend 24H 2:1 QR: 200.6g
    • RVOLVER Rear Hub Rim Brake StraightPull 24H QR: 203g


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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.
  • Attachements
    Front derailleur adjustmentsinstruction manual
    517.09 KB
    Which bottom bracket do I need?instruction manual
    894.62 KB
    Which bottom bracket do I need?instruction manual
    894.62 KB
    Q-Ring adaption guide / Starting with Q-Ringsinstruction manual
    194.47 KB
    Q-Ring adaption guide / Starting with Q-Ringsinstruction manual
    108.76 KB
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This item is crafted in Spain