Shimano Ultegra RD-R8000-GS Rear Derailleur - 11 Speed, Medium Cage, Black damper-compression Pulleys have sealed cartridge bearings

Pulleys have sealed cartridge bearings

Item Specifications Color Black Defined Color Black Direct Mount Type Direct Mount SRAM 3-Bolt Drivetrain Speeds 10 Drivetrain Speeds 11 Drivetrain Speeds 12 Material Aluminum Offset 3 Round or Oval Round Tooth Count 34

Enduro Zero Pulley Assemblies use grade 5 ceramic bearings

and are also available for 11 speed drive trains

Shimano Ultegra RD-R8000-GS Rear Derailleur - 11 Speed, Medium Cage, Black damper-compression Pulleys have sealed cartridge bearingsShimano Ultegra RD R8000 Rear Derailleur Item Specifications Cage Length Medium Chain Wrap Capacity (teeth) 39 Color Black Drivetrain Speeds 11 Largest Cog 34 Rear Der Shifter Compatibility Shimano Road Rear Derailleur Mount Type 10x1 Standard Rear Derailleur Mount Type Shimano Rear Direct Mount Weight 210 Shimano Ultegra RD R8000 Rear Derailleur Rear Derailleur UPC: 689228623163