Rear derailleurs
Shimano Shimano RD-M8250-GS
RD-M8250-GS · IRDM8250GSA
Compatibility: reviewed
Known specifications can be used by the compatibility engine.
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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 18, 2026
- Compatibility review
- Reviewed Aug 18, 2026
Approved technical sources
- IRDM8250GSA exact current Shimano sale packageManufacturerSource checked Aug 18, 2026Evidence reviewed Aug 18, 2026
- RD-M8250-GS Shimano Di2 system compatibilityManufacturerSource checked Aug 18, 2026Evidence reviewed Aug 18, 2026
- RD-M8250-GS official Shimano specificationsManufacturerSource checked Aug 18, 2026Evidence reviewed Aug 18, 2026
Technical data
Specifications
- Speeds
- 12-speed
- Maximum cassette cog
- 45T
- Supported front chainrings
- 1
- Maximum front difference
- 0T
- Drivetrain family
- Shimano Di2 MTB/gravel 1x12
- Shift actuation
- Electronic
- electronicShiftSystem
- Shimano Di2 Dn320
- compatibleElectronicShiftSystems
- Shimano Di2 Dn320
- electronicConnectionMode
- Wireless
- Frame mounting
- Conventional hanger
- Total capacity
- 36T