The Shimano Ultegra Di2 RD-R8150 Charger Cover protects the charging port on the RD-R8150 rear derailleur from dirt and moisture.
Keeping the port covered when not in use helps maintain reliable charging and supports the long-term performance of the electronic shifting system.
Quick Facts
| Feature |
Specification |
| Compatibility |
Shimano Ultegra Di2 RD-R8150 rear derailleur |