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.
| Model | Variants | System | Speeds | Actuation | Maximum cog | Mount | Cage | Price (MSRP) |
|---|---|---|---|---|---|---|---|---|
| Shimano 105 RD-R7000-GS | 1 | Drivetrain system shimano-road-11 | 11-speed (rear index count the maker rates it for) | Mechanical | Largest cog 34 teeth | Std-hanger | medium cage | $90.00 |
| Shimano Claris RD-R2000-GS | 1 | Drivetrain system shimano-road-11 | 8-speed (rear index count the maker rates it for) | Mechanical | Largest cog 34 teeth | Std-hanger | medium cage | $30.00 |
| Shimano GRX Di2 RD-RX717-SGS (1x12) | 1 | Drivetrain system shimano-grx-12 | 12-speed (rear index count the maker rates it for) | Di2-wired | Largest cog 51 teeth | Std-hanger | long cage | $420.00 |
| Shimano GRX RD-RX810 (2x11) | 1 | Drivetrain system shimano-grx-11 | 11-speed (rear index count the maker rates it for) | Mechanical | Largest cog 34 teeth | Std-hanger | medium cage | $100.00 |
| Shimano GRX Di2 | 2 | Drivetrain system shimano-grx-11 | 11-speed (rear index count the maker rates it for) | Di2-wired | Largest cog 34 teeth (on 1 of 2 variants); Largest cog 42 teeth (on 1 of 2 variants) | Std-hanger | medium cage | $300.00 to $350.00 |
| Shimano GRX RD-RX820 (2x12) | 2 | Drivetrain system shimano-grx-12 | 12-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-hanger | long 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) | 2 | Drivetrain system shimano-grx-12 | 12-speed (rear index count the maker rates it for) | Mechanical | Largest cog 45 teeth (on 1 of 2 variants); Largest cog 51 teeth (on 1 of 2 variants) | Std-hanger | long cage (on 1 of 2 variants); medium cage (on 1 of 2 variants) | $140.00 to $150.00 |
| Shimano 105 | 2 | Drivetrain system shimano-road-12 | 12-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 | Std-hanger | medium cage | $90.00 to $250.00 |
| Shimano Ultegra RD-R8150 Di2 | 1 | Drivetrain system shimano-road-12 | 12-speed (rear index count the maker rates it for) | Di2-wired | Largest cog 34 teeth | Std-hanger | short cage | $400.00 |
| Shimano Dura-Ace RD-R9250 Di2 | 1 | Drivetrain system shimano-road-12 | 12-speed (rear index count the maker rates it for) | Di2-wired | Largest cog 34 teeth | Std-hanger | short cage | $650.00 |
| Shimano Sora RD-R3000-GS | 1 | Drivetrain system shimano-road-11 | 9-speed (rear index count the maker rates it for) | Mechanical | Largest cog 34 teeth | Std-hanger | medium cage | $40.00 |
| Shimano Tiagra RD-4700-GS | 1 | Drivetrain system shimano-road-11 | 10-speed (rear index count the maker rates it for) | Mechanical | Largest cog 34 teeth | Std-hanger | medium 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.