Shimano 105 Rear Derailleur – 12-Speed (RD-R7100)

The Shimano 105 RD-R7100 is a reliable and smooth-shifting 12-speed rear derailleur designed for modern road bike drivetrains.
It features Shadow RD technology, which keeps the derailleur closer to the frame for improved chain stability and reduced exposure to impacts.

Compatible with Shimano’s 12-speed road systems, it supports wide-range cassettes (up to 36T) and can be mounted on both Direct Mount and conventional hangers.

Key Features:

• Compatible with Shimano 105 12-speed drivetrains

• Smooth and stable shifting with Shadow RD technology

• Works with cassettes up to 36T

• Direct Mount and standard hanger compatible

• Approx. weight: 249 g

• Color: Shimano 105 series finish

Technical Specifications:

• Model: RD-R7100

• Speeds: 12

• Chain compatibility: HG 12-speed

• Total capacity: 41T

• Max front difference: 16T

• Max sprocket: 36T / Min: 34T

• Smallest sprocket: 11T (max and min)

• Pulleys: 11-tooth, with bearing on guide pulley

• Fluorine-coated link bushings: 2