ROCTANE Energy Drink Mix provides 250 calories per serving

Personalize your gearing with one of five available PG-1130 cassettes featuring SRAM PowerGlide II shift technology

Protects and leaves a sparkling shine on metal

Adjust to the optimal position for any riding style or rider preference with clean cockpit

WEIGHT:   +/- (g) 270

SHIMANO Ultegra R8000 Rear Derailleur - 11-Speed - Shadow GS featured ROCTANE Energy Drink Mix providesSHIMANO ULTEGRA Rear Derailleur Medium Cage SHIMANO SHADOW RD 11 speed Updated with a SHIMANO SHADOW design, the SHIMANO ULTEGRA 8000 rear derailleur offers a sleek appearance and optimized shifting performance. covers: 11 28T to 11 34T