• Shimano GRX RD-RX820 2 x 12-Speed Rear Derailleur
  • Shimano GRX RD-RX820 2 x 12-Speed Rear Derailleur
Home / Bike Parts>Drivetrain Components / Shimano GRX RD-RX820 2 x 12-Speed Rear Derailleur

Shimano GRX RD-RX820 2 x 12-Speed Rear Derailleur

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  • Detail

    Features

    • Compatible with 11 C34T and 11 C36T 12-speed cassettes (not included)
    • Shimano SHADOW RD+ technology with an adjustable chain stabilizer to prevent chain slap and drops
    • Chain tensioner has an on/off switch for smooth and reliable shifting on mixed surfaces
    • Maximum front chainring difference: 17T
    • Top sprocket: maximum 11T/minimum 11T
    • Low sprocket: maximum 36T/minimum 34T
    • Total capacity: 42T

    Imported.

    View the Shimano GRX Product LineView all Shimano Rear Derailleurs


    Technical Specs

    Best Use

    Gravel Cycling

    Derailleur Type

    Rear

    Cage Length

    Long Cage

    Max Rear Cog Size

    36T

    Speeds

    12-speed

    Weight

    270 grams

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