Shimano ULTEGRA RD-6800 11-Speed Rear Derailleur Medium Black closeout Threaded Presta and Schrader valve

Threaded Presta and Schrader valve compatible system

the 10-speed chain features a reinforced design and is more efficient

The second generation of the legendary High Roller An open and aggressive tread design gives the High Roller II excellent soil penetration and mud-clearing ability

The optical gear display tells you which gear position is selected while riding

DoubleDown (DD) 120 TPI dual-ply construction available

Shimano ULTEGRA RD-6800 11-Speed Rear Derailleur Medium Black closeout Threaded Presta and Schrader valveBlending performance and style, the SHIMANO ULTEGRA 6800 series rear derailleurs deliver accurate shifting and light action.