Shimano Ultegra Rear Derailleur RD-R8000-SS 11-Speed

Ultegra RD-R8000 Rear Derailleur By Shimano - Shadow Profile protects against damage.

The Shimano Ultegra RD-R8000 11-speed rear derailleur now also uses the Shadow design, as was previously the case with Dura-Ace. This is an extremely flat profile which, combined with the more direct positioning, reduces the risk of damage and ensures clean, quiet shifting in all conditions. In addition, the direct mount compatibility results in a new mounting option. The Ultegra rear derailleur, which is mainly made of aluminium, is available in two versions: one with a short cage (SS type) for cassettes up to 11-30 and the second with a longer cage (GS type) for cassettes up to a gradation of 11-34. This means that you can cope well even on the steepest climbs.Key Features

• Model: Shimano Ultegra RD-R8000-SS Rear Derailleur

• Speed Compatibility: 11-speed drivetrain systems

• Shadow RD Design: Low-profile structure improves stability and protects against impact damage

• Precise Shifting: Smooth and quiet gear changes across the cassette

• Short Cage Design: Optimized for cassettes up to 11-30T

• High-Quality Pulley Bearings: Reduce friction and enhance drivetrain efficiency

• Fluorine-Coated Bushings: Improve durability and reduce wear

• Direct Mount Compatibility: Offers additional mounting flexibility

• Lightweight Construction: Aluminium body provides strength with reduced weight

• Versatile Application: Suitable for road and cyclocross bikes

Product Specifications

• Series: Ultegra R8000

• Application: Road, Cyclocross

• Gearing: 11-speed

• Mount Type: Standard mount (Direct Mount compatible)

• Maximum Capacity: 35 teeth (Short Cage)

• Cassette Compatibility: Up to 11-30T

• Chain Compatibility: HG-EV 11-speed, HG-X11

• Derailleur Pulley Teeth: 11T

• Outer Cage Material: Aluminium

• Inner Cage Material: Aluminium

• Additional Materials: Aluminium, composite (GFRP), stainless steel

Shifting Performance & Drivetrain Stability

The Shimano Ultegra RD-R8000-SS is engineered to deliver exceptional shifting precision and drivetrain stability. The Shadow RD design positions the derailleur closer to the bike frame, minimizing chain movement and improving gear engagement during intense riding conditions. High-quality pulley bearings reduce friction and allow the chain to glide smoothly across gears. The fluorine-coated joint bushings enhance durability and maintain consistent shifting performance over time. Together, these technologies create a quieter drivetrain, improved power transfer, and dependable shifting performance even during steep climbs or fast road riding.

Easy Operation / Usage

• Compatible with Shimano 11-speed road drivetrains for seamless integration

• Designed for quick installation with standard derailleur mounts

• Works efficiently with Shimano HG-EV and HG-X11 chains

• Ideal for performance road bikes and cyclocross setups

Why Choose This Product

• Advanced Shimano Shadow RD technology for enhanced protection

• Smooth and accurate shifting across all gears

• Lightweight yet durable aluminium construction

• Reliable performance for road cycling and competitive riding

• Trusted Shimano Ultegra engineering used by serious cyclists worldwide

In the Box

• Shimano Ultegra RD-R8000-SS Rear Derailleur

• User documentation