Shimano GRX REAR DERAILLEUR 11s (FOR 11-40/42T) Compatibility Guide
Quick Verdict
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 Series components, though it is mechanically compatible with the parts listed below.
Note on Compatibility: These recommendations are based on mechanical standards and manufacturer specifications. While parts may be technically compatible, mixing brands or categories (e.g., Road and MTB) may affect shift quality or aesthetic cohesion.
Compatible shifters for GRX REAR DERAILLEUR 11s (FOR 11-40/42T)
20 total resultsRecommended Pairing
6Road / Gravel
Shimano
GRX BRAKE AND DROPPER POST LEVER
Why it fits
- Uses cable shifting type
Shimano
GRX BRAKE LEVER 1X11s
Why it fits
- Matches required 11-speed standard
- Uses cable shifting type
Shimano
GRX DUAL CONTROL LEVER 11s
Why it fits
- Matches required 11-speed standard
- Uses cable shifting type
Shimano
GRX DUAL CONTROL LEVER 2X11s
Why it fits
- Matches required 11-speed standard
- Uses cable shifting type
MTB / City
Shimano
GRX SUB BRAKE LEVER
Why it fits
- Uses cable shifting type
Shimano
GRX SUB BRAKE LEVER
Why it fits
- Uses cable shifting type
Technically Compatible
14Matches required mechanical standards, but may not be the manufacturer-intended pairing.
Road / Gravel
Shimano
105 DUAL CONTROL LEVER RIM BRAKE 11s
Why it fits
- Matches required 11-speed standard
- Uses cable shifting type
Shimano
105 DUAL CONTROL LEVER RIM BRAKE 2X11s
Why it fits
- Matches required 11-speed standard
- Uses cable shifting type
Shimano
105 HYDRAULIC DISC BRAKE DUAL CONTROL LEVER 11s
Why it fits
- Matches required 11-speed standard
- Uses cable shifting type
Shimano
105 HYDRAULIC DISC BRAKE DUAL CONTROL LEVER 2X11s
Why it fits
- Matches required 11-speed standard
- Uses cable shifting type
Shimano
105 HYDRAULIC DISC BRAKE DUAL CONTROL LEVER FOR SMALL HANDS 11s
Why it fits
- Matches required 11-speed standard
- Uses cable shifting type
Shimano
105 HYDRAULIC DISC BRAKE DUAL CONTROL LEVER FOR SMALL HANDS 2X11s
Why it fits
- Matches required 11-speed standard
- Uses cable shifting type
Shimano
CUES BRAKE LEVER FOR SINGLE
Why it fits
- Matches required 10/11-speed standard
- Uses cable shifting type
Shimano
CUES HYDRAULIC BRAKE LEVER FOR SINGLE
Why it fits
- Uses cable shifting type
MTB / City
Shimano
ALFINE HYDRAULIC DISC BRAKE LEVER I-SPEC B CLAMP BAND
Why it fits
- Uses cable shifting type
Shimano
ALFINE SHIFT LEVER 11s
Why it fits
- Matches required 11-speed standard
- Uses cable shifting type
Shimano
BRAKE LEVER I-SPEC EV CLAMP BAND
Why it fits
- Uses cable shifting type
Shimano
CLARIS BRAKE LEVER
Why it fits
- Uses cable shifting type
General
Shimano
ASSIST SWITCH
Why it fits
- Uses cable shifting type
Compatible cassettes for GRX REAR DERAILLEUR 11s (FOR 11-40/42T)
7 total resultsTechnically Compatible
7Matches required mechanical standards, but may not be the manufacturer-intended pairing.
Road
Shimano
105 HG CASSETTE 11s
Why it fits
- Matches required 11-speed standard
- Uses shimano hg standard
Shimano
ULTEGRA HG CASSETTE 11s
Why it fits
- Matches required 11-speed standard
- Uses shimano hg standard
General
Shimano
11-34T HG CASSETTE 11s
Why it fits
- Matches required 11-speed standard
- Uses shimano hg standard
Shimano
HG CASSETTE 11s
Why it fits
- Matches required 11-speed standard
- Uses shimano hg standard
City / Trekking
MTB
Shimano
DEORE HG CASSETTE 11s
Why it fits
- Matches required 11-speed standard
- Uses shimano hg standard
Shimano
DEORE XT HG CASSETTE 11s
Why it fits
- Matches required 11-speed standard
- Uses shimano hg standard
Compatible chains for GRX REAR DERAILLEUR 11s (FOR 11-40/42T)
5 total resultsTechnically Compatible
5Matches required mechanical standards, but may not be the manufacturer-intended pairing.
City / Trekking
General
Shimano
CHAIN DEVICE D-TYPE MOUNT
Why it fits
- Uses shimano hg standard
Shimano
CHAIN DEVICE E-TYPE MOUNT
Why it fits
- Uses shimano hg standard
Shimano
CHAIN DEVICE ISCG05 MOUNT
Why it fits
- Uses shimano hg standard
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 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.
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