Is Shimano GRX Di2 DUAL CONTROL LEVER 12s compatible with Shimano 105 Di2 REAR DERAILLEUR 2X12s?
Not Compatible
high confidenceIssues found between Shimano GRX Di2 DUAL CONTROL LEVER 12s and Shimano 105 Di2 REAR DERAILLEUR 2X12s
Notes & Caveats
- Electronic shifting family mismatch: GRX Di2 DUAL CONTROL LEVER 12s (shimano di2 grx 12) is not compatible with 105 Di2 REAR DERAILLEUR 2X12s (shimano di2 road 12)
- Electronic shifting family mismatch: 105 Di2 REAR DERAILLEUR 2X12s (shimano di2 road 12) is not compatible with GRX Di2 DUAL CONTROL LEVER 12s (shimano di2 grx 12)
Frequently Asked Questions
Can I use Shimano GRX Di2 DUAL CONTROL LEVER 12s with Shimano 105 Di2 REAR DERAILLEUR 2X12s?
No — Shimano GRX Di2 DUAL CONTROL LEVER 12s and Shimano 105 Di2 REAR DERAILLEUR 2X12s are not compatible. Electronic shifting family mismatch: GRX Di2 DUAL CONTROL LEVER 12s (shimano di2 grx 12) is not compatible with 105 Di2 REAR DERAILLEUR 2X12s (shimano di2 road 12) Electronic shifting family mismatch: 105 Di2 REAR DERAILLEUR 2X12s (shimano di2 road 12) is not compatible with GRX Di2 DUAL CONTROL LEVER 12s (shimano di2 grx 12) Always confirm the exact specs before buying.
Do Shimano GRX Di2 DUAL CONTROL LEVER 12s and Shimano 105 Di2 REAR DERAILLEUR 2X12s use the same number of speeds?
Yes, both are 12-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 12s and Shimano 105 Di2 REAR DERAILLEUR 2X12s 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.
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