Offering fast, precise electronic shifting, the 12-speed Shimano RD-R8150 Ultegra Di-2 12-speed rear derailleur features a single cage length that's compatible with 28 to 34-tooth low sprockets.
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- Provides fast rear shifting—58% faster than RD-R9150
- Compact design includes an integrated wireless unit, charger and switch
- LED status indicator with battery indicator, pairing and adjust mode
- Wider range capacity; maximum low sprocket: 34T
Imported.
View the Shimano Di2 Product LineView all Shimano Rear Derailleurs| Best Use | Road Cycling |
|---|---|
| Derailleur Type | Rear |
| Cage Length | Long Cage |
| Max Rear Cog Size | 34T |
| Speeds | 12-speed |
| Weight | 262 grams |