Is Shimano GRX Di2 DUAL CONTROL LEVER 12s compatible with Shimano DURA-ACE Di2 REAR DERAILLEUR 12s?

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Not Compatible

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Issues found between Shimano GRX Di2 DUAL CONTROL LEVER 12s and Shimano DURA-ACE Di2 REAR DERAILLEUR 12s

Notes & Caveats

  • Electronic shifting family mismatch: GRX Di2 DUAL CONTROL LEVER 12s (shimano di2 grx 12) is not compatible with DURA-ACE Di2 REAR DERAILLEUR 12s (shimano di2 road 12)
  • Electronic shifting family mismatch: DURA-ACE Di2 REAR DERAILLEUR 12s (shimano di2 road 12) is not compatible with GRX Di2 DUAL CONTROL LEVER 12s (shimano di2 grx 12)

Part A

Shimano GRX Di2 DUAL CONTROL LEVER 12s

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Part B

Shimano DURA-ACE Di2 REAR DERAILLEUR 12s

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Frequently Asked Questions

Can I use Shimano GRX Di2 DUAL CONTROL LEVER 12s with Shimano DURA-ACE Di2 REAR DERAILLEUR 12s?

No — Shimano GRX Di2 DUAL CONTROL LEVER 12s and Shimano DURA-ACE Di2 REAR DERAILLEUR 12s are not compatible. Electronic shifting family mismatch: GRX Di2 DUAL CONTROL LEVER 12s (shimano di2 grx 12) is not compatible with DURA-ACE Di2 REAR DERAILLEUR 12s (shimano di2 road 12) Electronic shifting family mismatch: DURA-ACE Di2 REAR DERAILLEUR 12s (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 DURA-ACE Di2 REAR DERAILLEUR 12s 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 DURA-ACE Di2 REAR DERAILLEUR 12s 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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