This MTB rear mech features Shadow technology, which uses a super-low profile design and an optimised slant angle for incredibly light shifting action on the toughest of rides. Shimano has also equipped this version with a single tension spring, which prevents contact with the chainstay and delivers a silent ride.

Item Top Features Continued:

Clutch Option: 41T capacity SGS Long Cage
Compatibility: HG-X11 11-speed and HG-X 10-speed compatible
Single or Pair: Single
Part Numbers: RDM4120SGS

Technologies:
Shadow: Shadow design features a super low profile design and optimized slant angle for super light shifting action.
Wide Link: Wide link design for greater torsional rigidity improves shifting response and service life.
Single Tension Spring: Single tension spring prevents contact with the chainstay resulting in a silent ride. Top normal spring uses the spring to select higher gears. Strong return spring for a positive shifting feel.
Direct Cable Routing: Direct cable routing prevents snagging from any trail side hazards.

• Link Material: Alloy
• Finish: Fluorine-coated link pin bushings
• Use: MTB
• Speed: 10/11 speed
• Size: Long Cage
• Type: Rear
• Cable Routing: Direct cable routing
• Links: Wide links and pivot body
• Bearing Pulleys: 11T bearing pulleys
• Max Low Sprocket: 42T (2x11/2x10 speed)