The Shimano Deore RD-M5120-SGS Rear Derailleur delivers smooth, stable, and quiet shifting performance across 2x11, 1x10, and 2x10-speed MTB drivetrains. Incorporating SHIMANO SHADOW RD+ technology, it maintains a low-profile design that minimizes exposure to trail obstacles while providing superior chain stability and reduced drivetrain noise.

Its chain stabilizer mechanism effectively prevents chain slap and drops, ensuring consistent performance even on rough terrain. Designed for wide-range gearing, the RD-M5120 accommodates up to a 46T low sprocket (1x systems) or 42T (2x systems), offering versatility for various trail and all-mountain setups.

With fluoric-coated link bushings for smooth operation and long-lasting performance, this derailleur strikes the perfect balance between control, durability, and silent efficiency — ideal for riders seeking confidence and reliability on challenging trails.

Key Features:

• Model: RD-M5120-SGS

• Series: Shimano Deore M5100

• Speed Compatibility: 2x11, 1x10, 2x10-speed

• Technology: SHIMANO SHADOW RD+

• Mount Type: Direct Attachment / Direct Mount

• Max Front Difference: 10T

• Total Capacity: 41T

• Low Sprocket Range: 46T (1x) / 42T (2x)

• Top Sprocket Range: 11T (Max/Min)

• Pulley Size: 11T

• Link Bushings: Fluoric-coated (4)

• B-Axle: Hollow Axle Design

• Low-profile construction for trail protection

• Chain stabilizer reduces noise and chain drop

• Optimized for quiet, smooth shifting across wide gear ranges