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eBay£286.56Visit shop Shimano Deore Rear Derailleur W/O BT SGS 12 Speed Mech M6250
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The Shimano Deore RD-M6250 Di2 Wireless 12-spd Rear Derailleur is designed for mountain bikers seeking precise, reliable, and low-maintenance shifting across a wide range of 12-speed setups. Its key benefit is the seamless integration of Di2 electronic shifting with robust trail-ready features like crash recovery. A caveat is the requirement for a separate battery unit for operation. This derailleur offers advanced features including fully wireless connectivity, a low-profile design for protection, and superior chain management.
| Model Part Number | RD-M6250 |
|---|---|
| Brand | SHIMANO |
Yes, the Shimano Deore RD-M6250 requires a separate Shimano Di2 battery, such as the BT-DN320, to operate. The battery mount is integrated into the derailleur linkage.
This SGS (long cage) rear derailleur is optimized for 12-speed cassettes with a range of 10-51T.
After an impact, the derailleur has a function that helps it return to its original position or a usable state, minimizing the need for immediate manual adjustment and allowing you to continue riding.
No, this derailleur is specifically designed for 12-speed drivetrains and is not compatible with 11-speed systems.
Firmware updates are managed through Shimano's E-Tube Project application, available for PC and mobile devices. Connect your Di2 system to the app to check for and install updates.
The electronic components are sealed against dust and moisture, but it is not designed to be submerged. Avoid high-pressure washing directly at the derailleur and its connections.
These coatings reduce internal friction within the derailleur's pivots, leading to smoother and more responsive shifting, as well as increased long-term durability.
Check battery charge and ensure it is properly seated. Verify all E-Tube connections are secure. Re-pair the derailleur with the shifter using the E-Tube Project app. Check for any physical obstructions or damage to the derailleur or hanger.
Ensure the chain stabilizer switch is in the 'on' position for rough terrain. Check for wear on the jockey wheels and chain. Verify the derailleur is properly adjusted for the chosen cassette range.
Ensure Bluetooth or ANT+ is enabled on your connected device. Try re-pairing the derailleur. Check for firmware updates for both the derailleur and your connected device using the E-Tube Project app.
Engage the crash recovery function. Inspect the derailleur and hanger for visible damage. If the hanger is bent, it will require straightening or replacement. If the derailleur itself is damaged, it may need replacement.
Setup: The RD-M6250 requires a compatible Di2 shifter, e-tube wiring, and importantly, a Di2 battery (BT-DN320 sold separately). Initial setup involves pairing the derailleur with the shifter via the E-Tube Project app. Refer to the Shimano E-Tube manual for detailed wiring diagrams and pairing procedures.
Compatibility: This derailleur is designed for 12-speed drivetrains and is optimized for cassettes ranging from 10-51T. It is compatible with Shimano ANT+ and Bluetooth enabled components. Ensure your existing drivetrain components (shifter, cassette, chain) are also 12-speed compatible and within the specified range.
Care: Keep the derailleur clean by wiping it down after rides, especially after muddy or dusty conditions. Use a degreaser and a brush for more stubborn grime on the pulley cage and jockey wheels. Periodically check the derailleur hanger alignment using a derailleur alignment gauge. The electronic components are sealed, but avoid high-pressure washing directly at the derailleur body and connections. Ensure the battery is properly seated and charged according to manufacturer guidelines.
