Tension and guide pulley set for the Shimano GRX Di2 RD-RX815 11-speed rear derailleur. Set consists of guide and tension pulley with 13 teeth for smooth running each.
Specifications
| Activity | Bike |
|---|---|
| Usage Bikesport | Road |
| Shifting System | 11-speed |
| Rear Derailleur Accessories | Jockey Wheels |
| Weight | 23g |









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