Shimano DURA-ACE Di2 REAR DERAILLEUR 12s

Rear Derailleur

Specifications

Manufacturer
Shimano
Name
DURA-ACE Di2 REAR DERAILLEUR 12s
Series
R9200
MPN
RD-R9250
Groupset
Dura-Ace
Rear Speeds
12
Drivetrain Brand
Shimano
Shifting Type
Electronic (Di2)
Electronic Shifting Family
Shimano Di2 Road 12
Max Cog (T)
34[1]
Weight (g)
215
Sources
  1. [1] bike.shimano.com, checked 29 Sep 2026: Max Cog (T)

Offers

  • Merlin Cycles
    Merlin Cycles£599.00
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  • Tredz
    Tredz£599.00
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Price history

Recorded when a retailer's price changes; each line holds until the next change.

  • Tredz

Compatibility

Shimano DURA-ACE Di2 REAR DERAILLEUR 12s is a Shimano rear derailleur. It is a 12-speed component. It uses Electronic (Di2) shifting. Everything listed below was matched on a specification we hold for both parts: the interface each pairing actually depends on, such as freehub body, speed count, actuation or mounting standard. Where we could not verify that interface, the part is left out rather than assumed to fit.

Dura-Ace R9250 Di2 Rim Brake Groupset7

A groupset is designed and tested as one system, so these are the most reliable match. Other compatible parts are listed below.

Dura-Ace R9270 Di2 Disc Groupset9

A groupset is designed and tested as one system, so these are the most reliable match. Other compatible parts are listed below.

Shifters that drive this derailleur10

Chains for this derailleur20

Frequently Asked Questions

What fits Shimano DURA-ACE Di2 REAR DERAILLEUR 12s?

On this page we list cassettes for this derailleur, shifters that drive this derailleur, chains for this derailleur. Each listing was matched on a specification we hold for both parts; anything we could not verify is omitted rather than assumed to fit.

Can I use a higher or lower speed chain with Shimano DURA-ACE Di2 REAR DERAILLEUR 12s?

No. Shimano DURA-ACE Di2 REAR DERAILLEUR 12s is a 12-speed component and needs a 12-speed chain. Chains for different speed counts have different external widths and inner-plate profiles, which causes poor shifting or interference with the neighbouring sprockets.