GRX REAR DERAILLEUR 11s (FOR 11-40/42T)

Specifications

Manufacturer
Shimano
Name
GRX REAR DERAILLEUR 11s (FOR 11-40/42T)
Series
RX810
MPN
RD-RX812
Shifting Type
Cable
Slot consumption
All
Slots
Rear Derailleur
Weight (g)
267
Groupset
GRX
Drivetrain Brand
Shimano
Description
-
Rear Speeds
11

Shimano GRX REAR DERAILLEUR 11s (FOR 11-40/42T)

Rear Derailleur

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Compatibility

This Shimano GRX REAR DERAILLEUR 11s (FOR 11-40/42T) is a Shimano Gravel rear derailleur. It requires a 11-speed drivetrain and compatible components. It is designed for cable shifting systems. For best performance, use with other RX810 components, though it is mechanically compatible with the parts listed below.

Compatible Cranksets20

GRX CRANKSET - 1X11sRecommended

Shimano

GRX CRANKSET - 1X11s

  • Matches required 11-speed standard
  • Uses shimano hg standard
GRX CRANKSET - 2X11sRecommended

Shimano

GRX CRANKSET - 2X11s

  • Matches required 11-speed standard
  • Uses shimano hg standard
105 CRANKSET 2X11sCompatible

Shimano

105 CRANKSET 2X11s

  • Matches required 11-speed standard
  • Uses shimano hg standard
ALFINE CRANKSET WITH CHAIN GUARDCompatible

Shimano

ALFINE CRANKSET WITH CHAIN GUARD

Carbon GX Eagle CranksetCompatible

SRAM

Carbon GX Eagle Crankset

  • Matches required 11-speed standard
CRANKSET 1x11/10/9sCompatible

Shimano

CRANKSET 1x11/10/9s

  • Matches required 9/10/11-speed standard
  • Uses shimano hg standard
CRANKSET 2X11sCompatible

Shimano

CRANKSET 2X11s

  • Matches required 11-speed standard
  • Uses shimano hg standard
CRANKSET CHAIN LINE 3 MM OUTBOARD 2X11sCompatible

Shimano

CRANKSET CHAIN LINE 3 MM OUTBOARD 2X11s

  • Matches required 11-speed standard
  • Uses shimano hg standard
CUES 2-PIECE CRANKSET 1X11/10/9s (FC-U6000-1)Compatible

Shimano

CUES 2-PIECE CRANKSET 1X11/10/9s (FC-U6000-1)

  • Matches required 9/10/11-speed standard
  • Uses shimano hg standard
CUES 2-PIECE CRANKSET 1x11/10/9s (FC-U6030-1)Compatible

Shimano

CUES 2-PIECE CRANKSET 1x11/10/9s (FC-U6030-1)

  • Matches required 9/10/11-speed standard
  • Uses shimano hg standard
CUES 2-PIECE CRANKSET 2X11/10/9s FOR 148 MM O.L.D. U4000Compatible

Shimano

CUES 2-PIECE CRANKSET 2X11/10/9s FOR 148 MM O.L.D. U4000

  • Matches required 9/10/11-speed standard
  • Uses shimano hg standard
CUES 2-PIECE CRANKSET 2X11/10/9s FOR 148 MM O.L.D. U6000Compatible

Shimano

CUES 2-PIECE CRANKSET 2X11/10/9s FOR 148 MM O.L.D. U6000

  • Matches required 9/10/11-speed standard
  • Uses shimano hg standard
CUES 2-PIECE CRANKSET 2X11/10/9s U4000Compatible

Shimano

CUES 2-PIECE CRANKSET 2X11/10/9s U4000

  • Matches required 9/10/11-speed standard
  • Uses shimano hg standard
CUES 2-PIECE CRANKSET 2X11/10/9s U6000Compatible

Shimano

CUES 2-PIECE CRANKSET 2X11/10/9s U6000

  • Matches required 9/10/11-speed standard
  • Uses shimano hg standard
CUES CRANKSET 1X11/10/9sCompatible

Shimano

CUES CRANKSET 1X11/10/9s

  • Matches required 9/10/11-speed standard
  • Uses shimano hg standard
CUES CRANKSET 2X11/10/9sCompatible

Shimano

CUES CRANKSET 2X11/10/9s

  • Matches required 9/10/11-speed standard
  • Uses shimano hg standard
CUES CRANKSET 2X11/10/9s FOR 148 MM O.L.D.Compatible

Shimano

CUES CRANKSET 2X11/10/9s FOR 148 MM O.L.D.

  • Matches required 9/10/11-speed standard
  • Uses shimano hg standard
CUES CRANKSET HOLLOWTECH II 1x11/10/9sCompatible

Shimano

CUES CRANKSET HOLLOWTECH II 1x11/10/9s

  • Matches required 9/10/11-speed standard
  • Uses shimano hg standard
CUES HOLLOWTECH II CRANKSET 1X11/10/9sCompatible

Shimano

CUES HOLLOWTECH II CRANKSET 1X11/10/9s

  • Matches required 9/10/11-speed standard
  • Uses shimano hg standard
CUES HOLLOWTECH II CRANKSET 2X11s U6000Compatible

Shimano

CUES HOLLOWTECH II CRANKSET 2X11s U6000

  • Matches required 11-speed standard
  • Uses shimano hg standard

Compatible Shifters20

GRX BRAKE AND DROPPER POST LEVERRecommended

Shimano

GRX BRAKE AND DROPPER POST LEVER

  • Uses cable shifting type
GRX BRAKE LEVER 1X11s RX810Recommended

Shimano

GRX BRAKE LEVER 1X11s RX810

  • Matches required 11-speed standard
  • Uses cable shifting type
GRX DUAL CONTROL LEVER 11s RX810Recommended

Shimano

GRX DUAL CONTROL LEVER 11s RX810

  • Matches required 11-speed standard
  • Uses cable shifting type
GRX DUAL CONTROL LEVER 2X11s RX810Recommended

Shimano

GRX DUAL CONTROL LEVER 2X11s RX810

  • Matches required 11-speed standard
  • Uses cable shifting type
GRX SUB BRAKE LEVER (Left)Recommended

Shimano

GRX SUB BRAKE LEVER (Left)

  • Uses cable shifting type
GRX SUB BRAKE LEVER (Right)Recommended

Shimano

GRX SUB BRAKE LEVER (Right)

  • Uses cable shifting type
105 DUAL CONTROL LEVER RIM BRAKE 11sCompatible

Shimano

105 DUAL CONTROL LEVER RIM BRAKE 11s

  • Matches required 11-speed standard
  • Uses cable shifting type
105 DUAL CONTROL LEVER RIM BRAKE 2X11sCompatible

Shimano

105 DUAL CONTROL LEVER RIM BRAKE 2X11s

  • Matches required 11-speed standard
  • Uses cable shifting type
105 HYDRAULIC DISC BRAKE DUAL CONTROL LEVER 11sCompatible

Shimano

105 HYDRAULIC DISC BRAKE DUAL CONTROL LEVER 11s

  • Matches required 11-speed standard
  • Uses cable shifting type
105 HYDRAULIC DISC BRAKE DUAL CONTROL LEVER 2X11sCompatible

Shimano

105 HYDRAULIC DISC BRAKE DUAL CONTROL LEVER 2X11s

  • Matches required 11-speed standard
  • Uses cable shifting type
105 HYDRAULIC DISC BRAKE DUAL CONTROL LEVER FOR SMALL HANDS 11sCompatible

Shimano

105 HYDRAULIC DISC BRAKE DUAL CONTROL LEVER FOR SMALL HANDS 11s

  • Matches required 11-speed standard
  • Uses cable shifting type
105 HYDRAULIC DISC BRAKE DUAL CONTROL LEVER FOR SMALL HANDS 2X11sCompatible

Shimano

105 HYDRAULIC DISC BRAKE DUAL CONTROL LEVER FOR SMALL HANDS 2X11s

  • Matches required 11-speed standard
  • Uses cable shifting type
A9 Shift Lever (SL-A1106-R)Compatible

LTWOO

A9 Shift Lever (SL-A1106-R)

  • Matches required 11-speed standard
  • Uses cable shifting type
ALFINE HYDRAULIC DISC BRAKE LEVER I-SPEC B CLAMP BANDCompatible

Shimano

ALFINE HYDRAULIC DISC BRAKE LEVER I-SPEC B CLAMP BAND

  • Uses cable shifting type
ALFINE SHIFT LEVER 11sCompatible

Shimano

ALFINE SHIFT LEVER 11s

  • Matches required 11-speed standard
  • Uses cable shifting type
Apex 1 11-Speed Flat Bar ShifterCompatible

SRAM

Apex 1 11-Speed Flat Bar Shifter

  • Matches required 11-speed standard
  • Uses cable shifting type
ASSIST SWITCHCompatible

Shimano

ASSIST SWITCH

  • Uses cable shifting type
BRAKE LEVER I-SPEC EV CLAMP BANDCompatible

Shimano

BRAKE LEVER I-SPEC EV CLAMP BAND

  • Uses cable shifting type
BRAKE LEVER I-SPEC II CLAMP BANDCompatible

Shimano

BRAKE LEVER I-SPEC II CLAMP BAND

CLARIS BRAKE LEVERCompatible

Shimano

CLARIS BRAKE LEVER

  • Uses cable shifting type

Frequently Asked Questions

What fits with Shimano GRX REAR DERAILLEUR 11s (FOR 11-40/42T)?

Shimano GRX REAR DERAILLEUR 11s (FOR 11-40/42T) is compatible with cranksets, shifters, cassettes, chains that match its technical standards. Most importantly, it requires matching 11-speed components.

Can I use a higher or lower speed chain with Shimano GRX REAR DERAILLEUR 11s (FOR 11-40/42T)?

No, Shimano GRX REAR DERAILLEUR 11s (FOR 11-40/42T) requires a 11-speed chain. Chains for different speeds have different external widths and internal profiles, which will cause poor shifting or mechanical interference.

Does this Shimano GRX REAR DERAILLEUR 11s (FOR 11-40/42T) work with electronic shifting like Di2 or AXS?

No, this is a mechanical cable-actuated component. Electronic systems use internal motors and proprietary signals that are physically and electrically incompatible with mechanical components.