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The Shimano Ultegra Di2 RD-R8050 Rear Derailleur features a redesigned body that increases shift stability and improves the aesthetics delivering a sleek, integrated appearance. With the new optimized slant angle of the rear derailleur, the new Di2 ensures smooth, silent, and effortless electronic shifting.
The Shimano Ultegra Di2 RD-R8050 Rear Derailleur is available in two sizes, the Short Cage SS version will accept up to a 30T rear sprocket, while the Medium Cage GS version will accept up to a 34T sprocket.
Features:
- Redesigned rear derailleur features low-profile sleek body with optimized slant angle.
- Shimano Synchronized Shift technology ensures you’re always in the optimal gear placement.
- RD-SS covers 11-25t to 11-30t.
- RD-GS covers 11-28t to 11-34t.
- Claimed weight: 242g (SS), 249g (GS).
Specifications
| SS – Max 30T | Mfg PartNum: IRDR8050SS |
| GS – Max 34T | Mfg PartNum: IRDR8050GS |
| Mfg Warranty: 24 Mo. Parts & Labor | |
| Warranty URL: https://bike.shimano.com/en-EU/information/warranty.html | |






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