Description
REAR DERAILLEUR, RD-R8150, ULTEGRA Di2, 12-SPEED, W/TL-EW300
| Cage Length | One-Spec |
| Total Capacity | 39T |
| Max Front Difference | 16 |
| Color | SERIES COLOR |
| Average Weight | 262g |
| Mount | Direct attachment (conventional) |
| Number Of Pulley Teeth | 11 |
| Series | Ultegra |
| Generation | R8100 |
| Max Low Sprocket | 34T |
| Min Low Sprocket | 28T |
| Rear Speeds | 12 |
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