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GRX RD-RX812 1x11-speed Rear Derailleur
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GRX RD-RX812 1x11-speed Rear Derailleur
109,90 €
incl. 19% VAT, plus 0,- € shipping costs
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Item no.: 20072630
  • Description

    Shimano GRX RD-RX812 1x11-speed Rear Derailleur

    Based on the technology introduced by SHIMANO with the RX rear derailleurs, the GRX RD-RX812 1x11-speed rear derailleur is characterised by quiet, smooth, precise and reliable shifting, even in the most demanding terrain, thanks mainly to the SHADOW RD+ chain stabilisation system.

    For gravel, road and cyclocross use: Shimano GRX 1x11-speed Rear Derailleur RD-RX812

    It prevents the chain from hitting and unnecessary movements of the rear derailleur cage, thus ensuring uninterrupted switching performance. In total, the GRX family offers five rear derailleurs, which are used depending on the selection of the cassette and the shift system. The rear derailleurs with short cage (Di2: RDRX815; mechanical: RD-RX810) are used for 11-30T or 11-34T cassettes at ULTEGRA, 105 or TIAGRA level. If you use the 11-40T or 11-42T DEORE XT, SLX or DEORE groups, you will need the long cage rear derailleurs (Di2: RD-RX817; mechanical: RD-RX812), both of which have a specific lever-operated ratio for the road bike. Finally, in a 10-speed setup, SHIMANO's HG500-10 cassettes (11-32T, 11-34T, 11-36T) with the RD-RX400 rear derailleur are used.

    SHIMANO's GRX, the first Gravel-specific component family designed for both fast progress and safe bike handling on loose surfaces, is the result of an intensive and extensive research, testing and development process that incorporates information and feedback from countless riders on trails, forest tracks, gravel tracks and asphalt all over the world.

    Features - GRX RD-RX812 1x11-speed Rear Derailleur

    • Adjustable chain stabilizer prevents chain slapping and drops
    • Switch stabilizer ON/OFF to match the terrain
    • Gravel-tuned clutch tension
    • Silent and uninterrupted rear shifting on rough terrain
    • Smooth and reliable mixed surface shifting
    • Compatible with current road DUAL CONTROL LEVER

    Product features

    • Use: Gravel, Road, Cyclocross
    • Group: GRX
    • Model: RD-RX812
    • Mount Type: Direct Mount
    • Gear front: 1-speed
    • Gear rear: 11-speed
    • Compatible Chain: HG-EV 11-speed, HG-X11
    • Max. teeth large sprocket: 42T
    • Min. teeth large sprocket: 40T
    • Max. teeth small sprocket: 11T
    • Min. teeth small sprocket: 11T
    • Total Capacity: 31T


    • Aluminum
    • GFRP


    • 264g (manufacturer information)

    Scope of delivery

    • 1 GRX 1x11-speed Rear Derailleur RD-RX812


    Shimano Shadow RD+ 
    Less distraction quiet drive train. Rear Derailleur Stabilizer reduces chain slap. Simple solution for chain drop. Lighter and more efficient than roller type chain device.

    Introducing GRX gravel components | SHIMANO

    Explore Beyond with GRX Gravel components | SHIMANO

    UPC: 192790448886
  • Reviews
    Hilfreicher Hinweis: dieses Schaltwerk kann auch für 2-fach verwendet werden ! Da hier beim Artikel nur 1-fach erwähnt wird und auf der Shimano Website nichts nachteiliges stand, habe ich das Schaltwerk auf Verdacht bestellt. Habe mein Gravelbike hinten von 11-34 auf 11-42 (XT CS-M8000 11-fach) umgerüstet (vorne 50-34 gelassen), dazu dieses Schaltwerk montiert und eine längere Kette. Funktioniert einwandfrei.
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