Shimano 105 RD-R7100 12-Speed Mechanical Road Bike Rear Derailleur

Embrace the modern standard of road cycling with the Shimano 105 RD-R7100 Rear Derailleur. Tailored specifically for mechanical 12-speed drivetrains, this component allows you to experience the natural feel of cable-actuated shifting alongside a wider gear selection. It delivers a seamless step-up in gear progression, helping you maintain a perfect cadence on any incline.

Equipped with Shimano Shadow RD construction, the derailleur body sits tucked closer under the cassette. This low-profile geometry creates a sleeker aesthetic, reduces wind drag, and significantly lowers the risk of structural damage from narrow race crashes or roadside hazards. It is the perfect choice for endurance riders, road racers, and enthusiasts looking for high-tier performance without going electronic.

Key Features & Benefits:

• Advanced 12-Speed Cadence Tuning: Gives you the extra gear range required to tackle steep climbs while keeping tight cadence jumps on flat roads.

• Shimano Shadow RD Technology: Low-profile architecture ensures stable, crisp shifting under high loads and enhances crash protection.

• Light Mechanical Action: Optimized for smooth, low-effort lever pull with immediate, highly tactile gear engagement.

• Wide-Cassette Optimization: Specially engineered to comfortably track large sprockets for wide-ratio configurations (up to 36T max low sprocket).

Product Specifications:

• Model: RD-R7100

• Series: Shimano 105 R7100

• Speed: 12-Speed

• Drivetrain Type: Mechanical (Cable Actuated)

• Maximum Low Sprocket: 36T

• Minimum Low Sprocket: 34T

• Top Sprocket Max/Min: 11T / 11T

• Total Capacity: 41T