Shimano Ultegra R8000 Shadow rear derailleur.

SPECS

• Color: Black
• Largest Cog: 30
• Rear Derailleur Mount Type: Shimano Rear Direct Mount , 10x1 Standard
• Chain Wrap Capacity (teeth): 35
• Cage Length: Short
• Rear Der/Shifter Compatibility: Shimano Road
• Drivetrain Speeds: 11
• Weight: 200g