• Shimano GRX RD-RX820 1x12-Speed Rear Derailleur - Medium Cage
  • Shimano GRX RD-RX820 1x12-Speed Rear Derailleur - Medium Cage
Home / Shimano GRX RD-RX820 1x12-Speed Rear Derailleur - Medium Cage

Shimano GRX RD-RX820 1x12-Speed Rear Derailleur - Medium Cage

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  • Detail

    Features

    • Compatible with 10 C45T, 12-speed Shimano MTB 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 and easy wheel removal
    • Top sprocket: maximum 10T/minimum 10T
    • Low sprocket: maximum 45T/minimum 45T
    • Total capacity: 35T
    • Interchangeable, replaceable GS/SGS derailleur cage

    Imported.

    View the Shimano GRX Product LineView all Shimano Rear Derailleurs


    Technical Specs

    Best Use

    Gravel Cycling

    Derailleur Type

    Rear

    Cage Length

    Medium Cage

    Max Rear Cog Size

    45T

    Speeds

    12-speed

    Weight

    290 grams

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