Rear derailleurs
Shimano Shimano Sora RD-R3000-GS Rear Derailleur
GS · 11-28T / 11-32T / 11-34T
Compatibility: reviewed
Known specifications can be used by the compatibility engine.
Retailer offers
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Catalog trust
Evidence and freshness
Technical-source dates and retailer offer checks are separate. A retailer check does not validate compatibility.
Report a correction- Technical review
- Aug 13, 2026
- Compatibility review
- Reviewed Aug 13, 2026
Approved technical sources
- Shimano package-code and label referenceManufacturerSource checked Jul 28, 2026Evidence reviewed Aug 13, 2026
- Shimano rear drivetrain compatibility C-454ManufacturerSource checked Jul 28, 2026Evidence reviewed Aug 13, 2026
- Shimano road rear derailleur specificationManufacturerSource checked Jul 31, 2026Evidence reviewed Aug 13, 2026
Technical data
Specifications
- Speeds
- 9-speed
- Supported speeds
- 9-speed
- Maximum cassette cog
- 34T
- Supported cassette combinations
- 11-28t, 11-32t, 11-34t
- Supported front chainrings
- 2
- Maximum front difference
- 20T
- Drivetrain family
- Shimano Sora R3000 mechanical 9-speed
- Compatible chain families
- Shimano HG 9-speed
- Frame mounting
- Conventional hanger
- Total capacity
- 43T