Shimano ULTEGRA Di2 REAR DERAILLEUR MEDIUM CAGE 11s Compatibility Guide
Quick Verdict
This Shimano ULTEGRA Di2 REAR DERAILLEUR MEDIUM CAGE 11s is a Shimano Road rear derailleur. It requires a 11-speed drivetrain and compatible components. It is designed for di2 shifting systems. For best performance, use with other R8000 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 ULTEGRA Di2 REAR DERAILLEUR MEDIUM CAGE 11s
10 total resultsRecommended Pairing
2
Shimano
ULTEGRA Di2 TRIATHLON/TT DUAL CONTROL LEVER RIM BRAKE 11s
Why it fits
- Matches required 11-speed standard
- Uses di2 shifting type

Shimano
ULTEGRA Di2 TRIATHLON/TT DUAL CONTROL LEVER RIM BRAKE 2X11s
Why it fits
- Matches required 11-speed standard
- Uses di2 shifting type
Technically Compatible
8Matches required mechanical standards, but may not be the manufacturer-intended pairing.
Road / Gravel

Shimano
ALFINE Di2 DUAL CONTROL LEVER 2X11s
Why it fits
- Matches required 11-speed standard
- Uses di2 shifting type

Shimano
Di2 REMOTE TRIATHLON SHIFTER
Why it fits
- Matches required 11-speed standard
- Uses di2 shifting type

Shimano
DURA-ACE Di2 TRIATHLON/TT DUAL CONTROL LEVER RIM BRAKE 11s
Why it fits
- Matches required 11-speed standard
- Uses di2 shifting type

Shimano
DURA-ACE Di2 TRIATHLON/TT DUAL CONTROL LEVER RIM BRAKE 2X11s
Why it fits
- Matches required 11-speed standard
- Uses di2 shifting type

Shimano
DURA-ACE Di2 TRIATHLON/TT HYDRAULIC DISC BRAKE DUAL CONTROL LEVER 11s
Why it fits
- Matches required 11-speed standard
- Uses di2 shifting type

Shimano
DURA-ACE Di2 TRIATHLON/TT HYDRAULIC DISC BRAKE DUAL CONTROL LEVER 2X11s
Why it fits
- Matches required 11-speed standard
- Uses di2 shifting type
Compatible cassettes for ULTEGRA Di2 REAR DERAILLEUR MEDIUM CAGE 11s
7 total resultsRecommended Pairing
1
Shimano
ULTEGRA HG CASSETTE 11s
Why it fits
- Matches required 11-speed standard
- Uses shimano hg standard
Technically Compatible
6Matches 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
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 ULTEGRA Di2 REAR DERAILLEUR MEDIUM CAGE 11s
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 ULTEGRA Di2 REAR DERAILLEUR MEDIUM CAGE 11s?
Shimano ULTEGRA Di2 REAR DERAILLEUR MEDIUM CAGE 11s 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 ULTEGRA Di2 REAR DERAILLEUR MEDIUM CAGE 11s?
No, Shimano ULTEGRA Di2 REAR DERAILLEUR MEDIUM CAGE 11s requires a 11-speed chain. Chains for different speeds have different external widths and internal profiles, which will cause poor shifting or mechanical interference.
Can I mix Shimano ULTEGRA Di2 REAR DERAILLEUR MEDIUM CAGE 11s with MTB components?
While some mechanical standards (like cassette spacing at certain speeds) may overlap, Shimano ULTEGRA Di2 REAR DERAILLEUR MEDIUM CAGE 11s is optimized for Road use. Mixing with MTB parts often fails due to differing pull ratios and chainlines.
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