NEW Shimano Ultegra RD-R8050-GS Di2 Rear Derailleur - 11-Speed, Medium Cage, Black direct-mount-type_direct-mount-sram the super fast Vault hub

the super fast Vault hub delivers big time performance and durablity for long-lasting shredability

Hard rubber tires on 5'' plated steel rims

The center section is aero bar compatible

Suggested for road and commuter use

NEW Shimano Ultegra RD-R8050-GS Di2 Rear Derailleur - 11-Speed, Medium Cage, Black direct-mount-type_direct-mount-sram the super fast Vault hubThe Shimano Ultegra R8050 11 speed rear derailleur focuses on stress free operation in order to provide all day riding comfort with braking and shifting. Rear Derailleur Mount Type: Shimano Rear Direct Mount Rear Derailleur Mount Type: 10x1 Standard Rear Der Shifter Compatibility: Shimano Road Di2 Cage Length: Medium Drivetrain Speeds: 11 Weight: 242 Color: Black keyword search: GM24855V Chain Wrap Capacity (teeth): 39 Largest Cog: 34