Shifters
Shimano Shimano ST-RX815-R
ST-RX815-R · ISTRX815R
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
- ISTRX815R exact current Shimano sale packageManufacturerSource checked Aug 18, 2026Evidence reviewed Aug 18, 2026
- ST-RX815-R Shimano Di2 system compatibilityManufacturerSource checked Aug 18, 2026Evidence reviewed Aug 18, 2026
- ST-RX815-R official Shimano specificationsManufacturerSource checked Aug 18, 2026Evidence reviewed Aug 18, 2026
Technical data
Specifications
- Speeds
- 12-speed
- Compatible drivetrain families
- Shimano Di2 MTB 2x11, Shimano Di2 MTB/gravel 1x11, Shimano Di2 gravel 2x11
- Shift actuation
- Electronic
- electronicShiftSystem
- Shimano Di2 Sd50
- compatibleElectronicShiftSystems
- Shimano Di2 Sd50
- electronicConnectionMode
- Wired
- Control style
- Drop Bar Integrated
- Brake control interface
- Hydraulic Mineral Oil
- Compatible brake hoses
- Sm-Bh90-Jk-Ssr
- Included control sides
- Right
- Right control functions
- Brake, Rear Shift