Shimano GRX 12s Rear Derailleur
Shimano GRX 12s Rear Derailleur
Shimano GRX 12s Rear Derailleur

Shimano GRX 12s Rear Derailleur

Regular price $165.00
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Shipping calculated at checkout.
2 in stock

**Please Select your Variant carefully**

RD-RX820

Enhanced chain security and quieter, more stable shifting for gravel riding

The RD-RX820 is compatible with 11-34T and 11-36T 12-speed cassettes, providing a wide gear range so you can spin a comfortable cadence no matter the terrain type. The SHIMANO GRX 12-speed rear derailleur also features an integrated chain stabilizer that delivers quieter shifting and more secure chain management during rough rides. And the chain tensioner has an ON/OFF switch for outings on smooth surfaces.

FEATURES

  • Silent and secure rear shifting on rough terrain
  • Adjustable chain stabilizer prevents chain slap and drops
  • SHIMANO SHADOW RD+
  • Smooth and reliable shifting on mixed surfaces
  • ON/OFF stabilizer switch matches terrain
  • Maximum front chainring difference: 17T
  • Top sprocket: Max. 11T/Min. 11T
  • Low sprocket: Max. 36T/Min. 34T
  • Total capacity: 42T
  •  

    RD-RX822-GS

    Enhanced chain security and quieter shifting for gravel riding

    With its integrated chain stabilizer and medium cage, the SHIMANO GRX rear derailleur delivers quieter shifting, better ground clearance and more secure chain management in rough terrain. The RD-RX822-GS is compatible with 10-45T, 12-speed SHIMANO MTB cassettes, and the chain tensioner has an ON/OFF switch for easy wheel removal.

    FEATURES

  • Silent and secure rear shifting on rough terrain
  • Adjustable chain stabilizer prevents chain slap and drops
  • SHIMANO SHADOW RD+
  • Smooth and reliable shifting on mixed surfaces
  • ON/OFF stabilizer switch matches terrain
  • Top sprocket: Max. 10T/Min. 10T
  • Low sprocket: Max. 45T/Min. 45T
  • Total capacity: 35T
  • Interchangeable, replaceable GS/SGS derailleur cage
  •  

    RD-RX822-SGS

    Enhanced chain security and quieter shifting for gravel riding

    With its integrated chain stabilizer, the SHIMANO GRX rear derailleur delivers quieter shifting and more secure chain management in rough terrain. The RD-RX822-SGS is compatible with 10-51T, 12-speed SHIMANO MTB cassettes, meaning you’ll never run out of gears even on the steepest jeep road or high mountain singletrack ascent. And the chain tensioner has an ON/OFF switch for easy wheel removal.

    FEATURES

  • Silent and secure rear shifting on rough terrain
  • Adjustable chain stabilizer prevents chain slap and drops
  • SHIMANO SHADOW RD+
  • Smooth and reliable shifting on mixed surfaces
  • ON/OFF stabilizer switch matches terrain
  • Top sprocket: Max. 10T/Min. 10T
  • Low sprocket: Max. 51T/Min. 51T
  • Total capacity: 41T
  • Interchangeable, replaceable GS/SGS derailleur cage