The all-new SHIMANO DEORE M6100 rear derailleurs deliver advanced shifting performance with decreased tension in the low gear position. Larger 13T pulleys increase efficiency and chain management while compatibility with SHIMANO's new 12-speed cassettes boosts range.

• 1x12-speed SHIMANO SHADOW RD rear derailleur
• Fast and precise shifting for modern mountain biking
• Silent drivetrain in all gear positions
• Decreased rear derailleur and chain tension in low gear
• Bigger 13T pulley
• Stable drivetrain in rough terrain
• Low-profile design avoids damage from rocks
• Chain stabilizer reduces chain drop, slap and noise