Shimano Deore RD-M6100 Rear Derailleur Shadow+ 12S Long

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