Is Shimano GRX Di2 DUAL CONTROL LEVER 2X11s compatible with Shimano ULTEGRA Di2 REAR DERAILLEUR SHORT CAGE 11s?
Not Compatible
high confidenceIssues found between Shimano GRX Di2 DUAL CONTROL LEVER 2X11s and Shimano ULTEGRA Di2 REAR DERAILLEUR SHORT CAGE 11s
Notes & Caveats
- Electronic shifting family mismatch: GRX Di2 DUAL CONTROL LEVER 2X11s (shimano di2 grx 11) is not compatible with ULTEGRA Di2 REAR DERAILLEUR SHORT CAGE 11s (shimano di2 road 11)
- Electronic shifting family mismatch: ULTEGRA Di2 REAR DERAILLEUR SHORT CAGE 11s (shimano di2 road 11) is not compatible with GRX Di2 DUAL CONTROL LEVER 2X11s (shimano di2 grx 11)
Frequently Asked Questions
Can I use Shimano GRX Di2 DUAL CONTROL LEVER 2X11s with Shimano ULTEGRA Di2 REAR DERAILLEUR SHORT CAGE 11s?
No — Shimano GRX Di2 DUAL CONTROL LEVER 2X11s and Shimano ULTEGRA Di2 REAR DERAILLEUR SHORT CAGE 11s are not compatible. Electronic shifting family mismatch: GRX Di2 DUAL CONTROL LEVER 2X11s (shimano di2 grx 11) is not compatible with ULTEGRA Di2 REAR DERAILLEUR SHORT CAGE 11s (shimano di2 road 11) Electronic shifting family mismatch: ULTEGRA Di2 REAR DERAILLEUR SHORT CAGE 11s (shimano di2 road 11) is not compatible with GRX Di2 DUAL CONTROL LEVER 2X11s (shimano di2 grx 11) Always confirm the exact specs before buying.
Do Shimano GRX Di2 DUAL CONTROL LEVER 2X11s and Shimano ULTEGRA Di2 REAR DERAILLEUR SHORT CAGE 11s use the same number of speeds?
Yes, both are 11-speed components. Matching the speed count is the single most important drivetrain requirement — the cassette spacing and cable pull are designed around it.
Are Shimano GRX Di2 DUAL CONTROL LEVER 2X11s and Shimano ULTEGRA Di2 REAR DERAILLEUR SHORT CAGE 11s the same shifting type?
Yes, both are electronic. Note that electronic groups still have to belong to the same electronic family (e.g. Di2 vs AXS) to communicate.
Check in Builder
Validate this specific combination in our bike builder to prevent costly mistakes.
Open Combination