Shimano Ultegra RD-R8000-GS Rear Derailleur - 11 Speed, Medium Cage, Black

Available from Good Weather Bicycle when we last checked. Sold from the shop’s own store; the price there is the one that counts.

Shimano Ultegra RD-R8000 Rear Derailleur Color: Black Largest Cog: 34 Rear Derailleur Mount Type: Shimano Rear Direct Mount , 10x1 Standard Chain Wrap Capacity (teeth): 39 Cage Length: Medium Rear Der/Shifter Compatibility: Shimano Road Drivetrain Speeds: 11 Weight: 210