The Deore M6100 Shadow Plus 12-speed rear derailleur delivers excellent value and reliable shifting performance. While the SLX and XT options may be more eye-catching, the Deore's performance is very similar, making it the preferred choice for many.

The Shadow Plus design ensures a low profile and optimized slant angle for smooth shifting. It also includes a chain stabilizing switch to reduce chain bounce on rough terrain, providing a more stable drive and shifting experience. Additionally, the single tension spring prevents contact with the chainstay, resulting in a quieter ride.

Features:

• 13T pulleys, decreasing derailleur tension prevent high chain tension in low gears
• Direct cable routing prevents snagging from any trail side hazards
• Cold forged wide alloy links and pivot body
• Fluorine-coated link pin bushings
• Strong return spring for a positive shifting feel
  
• Top normal spring uses the spring to select higher gears
• Max low sprocket: 51T (1x 12-speed)