Shimano GRX RD-RX812 Rear Derailleur - 11-Speed, Long Cage, Black, With Clutch, For 1x, 42t Low Sprocket Max

By: Shimano

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  • The Shimano GRX 11-speed rear derailleur has an integrated chain stabilizer mechanism, that provides a quieter experience, shifting security and precision on mixed terrain. For rides on smooth surfaces, the derailleur features an ON/OFF switch for the chain tensioner. The Shimano Shadow RD+ adjustable chain stabilizer provides silent and uninterrupted rear shifting on rough terrain.
    • For 1x drivetrains
    • 42t low sprocket max / 11t top sprocket max
    • Adjustable Shimano RD+ chain stablizer prevents chain slapping and drops
    • Gravel-tuned clutch tension provides smooth and reliable mixed surface shifting
    • Compatible with Shimano road Dual Control Levers
    • Compatible with Shimano LinkGlide and HG 11-speed chains
    Item Specifications
    Cage Length Long
    Chain Wrap Capacity (teeth) 31
    Color Black
    Drivetrain Speeds 11
    Largest Cog 42
    Rear Der/Shifter Compatibility Shimano Road
    Rear Derailleur Mount Type 10x1 Standard
    Rear Derailleur Mount Type Shimano Rear Direct Mount
    Weight 267
    Shimano GRX RD-RX810/RX812 11-Speed Rear Derailleurs Rear Derailleur UPC: 192790448886
  • United States Shipping:

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    International Shipping:

    International shipping is available on 99% of our products. Shipping cost can be calculated on the cart page or during checkout. We are experts at international shipping so please buy with confidence. We have great prices on Usps Priority & Express services, all services will include a tracking number. Please see our International Shipping Options page for more info.

    In-Store Pickup:

    If you would like to pick up your online order in store simply select the Store Pickup option during checkout (this is free of course). We will contact you once your order is ready for pick up.


    We offer a 45 day return period on all new items. We want our customers to be happy and returns to be easy. Please see our Return Policy FAQ's page for more info.

Sku: RD0605

Mpn: IRDRX812

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