

⚡ Shift smarter, ride faster — the future of cycling tech is here!
The Shimano Ultegra RD-R8150 Di2 Rear Derailleur is a premium 12-speed electronic shifting component featuring a compact wireless-integrated design, medium cage compatibility with up to 34-tooth sprockets, and intuitive LED status indicators. Engineered from lightweight aluminum and carbon fiber, it delivers precise, reliable performance for serious road cyclists seeking cutting-edge drivetrain technology.
| ASIN | B09YJSJNBS |
| Brand Name | SHIMANO |
| Case Material Type | Aluminium |
| Colour | Black |
| Customer Reviews | 4.8 4.8 out of 5 stars (14) |
| Included Components | Shimano Ultegra RD-R8150 Di2 Rear Derailleur |
| Item Dimensions L x W x H | 17.8L x 17.8W x 17.8H centimetres |
| Item Weight | 0.9 Pounds |
| Manufacturer | Shimano |
| Manufacturer Part Number | IRDR8150A |
| Material Type | Aluminum Carbon Fiber |
| Mount Type | Braze-On Mount |
| Number of Items | 1 |
| Number of Teeth | 34 |
| UPC | 192790874999 |
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