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Prototype - Evolving Daily

Shimano Rear Derailleur

12 models, 16 verified variants. Only rows checked against Shimano’s own page are listed.

A value shown as a set or a range differs between this model’s variants and is never one variant’s spec. A cell marked not stated is a field the maker does not publish, so nothing here checks it.

ModelVariantsSystemSpeedsActuationMaximum cogMountCagePrice (MSRP)
Shimano 105 RD-R7000-GS1Drivetrain system shimano-road-1111-speed (rear index count the maker rates it for)MechanicalLargest cog 34 teethStd-hangermedium cage$90.00
Shimano Claris RD-R2000-GS1Drivetrain system shimano-road-118-speed (rear index count the maker rates it for)MechanicalLargest cog 34 teethStd-hangermedium cage$30.00
Shimano GRX Di2 RD-RX717-SGS (1x12)1Drivetrain system shimano-grx-1212-speed (rear index count the maker rates it for)Di2-wiredLargest cog 51 teethStd-hangerlong cage$420.00
Shimano GRX RD-RX810 (2x11)1Drivetrain system shimano-grx-1111-speed (rear index count the maker rates it for)MechanicalLargest cog 34 teethStd-hangermedium cage$100.00
Shimano GRX Di22Drivetrain system shimano-grx-1111-speed (rear index count the maker rates it for)Di2-wiredLargest cog 34 teeth (on 1 of 2 variants); Largest cog 42 teeth (on 1 of 2 variants)Std-hangermedium cage$300.00 to $350.00
Shimano GRX RD-RX820 (2x12)2Drivetrain system shimano-grx-1212-speed (rear index count the maker rates it for)Di2-wired (on 1 of 2 variants); Mechanical (on 1 of 2 variants)Largest cog 36 teeth (on 1 of 2 variants); Largest cog 51 teeth (on 1 of 2 variants)Std-hangerlong cage (on 1 of 2 variants); medium cage (on 1 of 2 variants)$130.00 to $500.00
Shimano GRX RD-RX822-GS (1x12, 10-45T)2Drivetrain system shimano-grx-1212-speed (rear index count the maker rates it for)MechanicalLargest cog 45 teeth (on 1 of 2 variants); Largest cog 51 teeth (on 1 of 2 variants)Std-hangerlong cage (on 1 of 2 variants); medium cage (on 1 of 2 variants)$140.00 to $150.00
Shimano 1052Drivetrain system shimano-road-1212-speed (rear index count the maker rates it for)Di2-wired (on 1 of 2 variants); Mechanical (on 1 of 2 variants)Largest cog 36 teethStd-hangermedium cage$90.00 to $250.00
Shimano Ultegra RD-R8150 Di21Drivetrain system shimano-road-1212-speed (rear index count the maker rates it for)Di2-wiredLargest cog 34 teethStd-hangershort cage$400.00
Shimano Dura-Ace RD-R9250 Di21Drivetrain system shimano-road-1212-speed (rear index count the maker rates it for)Di2-wiredLargest cog 34 teethStd-hangershort cage$650.00
Shimano Sora RD-R3000-GS1Drivetrain system shimano-road-119-speed (rear index count the maker rates it for)MechanicalLargest cog 34 teethStd-hangermedium cage$40.00
Shimano Tiagra RD-4700-GS1Drivetrain system shimano-road-1110-speed (rear index count the maker rates it for)MechanicalLargest cog 34 teethStd-hangermedium cage$60.00

Source for every row: Shimano’s own product pages, last checked between 2026-07-17 and 2026-08-15.

The checker compares the dimensions listed in what we check, and what we don’t. “No conflicts found” means no conflict among those dimensions — not a guarantee that a build works. Errors mean it won’t fit; warnings mean it works but check; infos are notes.

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