Shimano GRX RX810 Rear Derailleur 1x11-speed or 2x11-speed

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  • Regular price $209.95 CAD
  • Will be in stock after
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Shimano GRX is a gravel specific components group with gravel optimized gearing options and rugged reliability. Not a modified set of road components, it was designed from the ground up as a gravel specific groupset. GRX eliminates any excuses urging you to try that rough sidetrack or ride that little bit longer. It offers you the option to Explore Beyond!

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The integrated chain stabilizer mechanism on the new SHIMANO GRX derailleur makes for a quieter ride while delivering precise, fast and reliable shifting on all types of terrain. For rides on smooth surfaces, the derailleur features and ON/OFF switch for the chain tensioner.

The RD-RX810 rear derailleur is compatible with road cassettes with a 34T low sprocket max.

The RD-RX812 rear derailleur is compatible with MTB cassettes with a 42T low sprocket max.

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

RD-RX810

  • Maximum front difference: 17T
  • Top sprocket: Max. 11T/Min. 11T
  • Low sprocket: Max. 34T/Min. 30T
  • Total capacity: 40T

RD-RX812

  • Top sprocket: Max. 11T/Min. 11T
  • Low sprocket: Max. 42T/Min. 40T
  • Total capacity: 31T