Shimano Ultegra RD-R8000-GS 11-Speed Rear Derailleur (Medium Cage)

Upgraded with a low-profile SHIMANO SHADOW RD design, the Shimano Ultegra RD-R8000-GS rear derailleur delivers a sleek appearance, unparalleled chain stability, and precision-optimized shifting performance. Engineered specifically for modern road and cyclocross disciplines, the medium-cage (GS) layout allows for a wider gear range, keeping you spinning efficiently on steep alpine climbs and fast descents alike.

By positioning the derailleur bodies closer to the frame, the unique Shadow design significantly reduces the profile to prevent damage from crashes or narrow trail clearance, ensuring crisp, whisper-quiet gear changes in all riding conditions.

Key Features:

• Shimano Shadow RD Design: Low-profile geometry increases drivetrain stability, reduces crash vulnerability, and provides a clean, compact aesthetic.

• Medium Cage (GS) Versatility: Optimally covers wider gear combinations—perfect for cassettes ranging from 11-28T up to 11-34T.

• Smooth & Reliable Shifting: Features 4 fluorine-coated link bushings and sealed guide/tension pulley bearings to minimize friction and wear.

• Direct Mount Compatible: Offers a more integrated, rigid mounting option for modern disc-brake and rim-brake road frames.

Specifications:

• Model No: RD-R8000-GS

• Series: ULTEGRA R8000

• Speed: 11-Speed

• Cage Length: Medium Cage (GS)

• Total Capacity: 39T

• Maximum Low Sprocket: 34T

• Minimum Low Sprocket: 28T

• Average Weight: 210g

• Compatible Chain: Linkglide, HG 11-speed