12 replaceable alloy pins available in seven colors (red

for enough breathability and support for long ride adventures

2 different lever lengths for crisper or softer operating forces

Adjustable on the fly

5-Digit Programmable Combination Lock

SHIMANO Rear Derailleur RD-M3100, Alivio ,SGS, 9-Speed, Top Normal wahoopromo 12 replaceable alloy pins availableThe SHIMANO ALIVIO RD M3100 9 speed rear derailleur delivers a low profile design that lets you ride aggressively with fewer interruptions thanks to its SHIMANO SHADOW design. The SHIMANO ALIVIO M3100 2x9 speed or 3x9 speed drivetrains receive new updated shifters and derailleurs. SHIMANO ALIVIO utilizes Shimano hallmark technologies including SHIMANO SHADOW RD derailleurs and RAPIDFIRE PLUS MONO technology in the left shifter to simplify the riding