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GRX Di2 11 speed rear derailleur for double cranks Adjustable chain stabilizer prevents chain slapping and drops Gravel-tuned clutch tension can be toggled ON/OFF to match the terrain Maximum front difference: 17T Total capacity: 40T Low sprocket: Max. 34T
| Cage | GS |
| Max Front Difference | 17T |
| Maximum Cog | 34T |
| Minimum Cog | 11T |
| Primary Color | Grey |
| RD Capacity | 40T |
| RD Spring Type | Shadow Plus |
| RD Weight | 287g |
| Speed | 11 |
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