SHIMANO Rear Derailleur RD-M3100, Alivio ,SGS, 9-Speed, Top Normal Compatio_Enriched and everything in between

and everything in between

DoubleTap 10 speed shift/brake lever offers high performance and the light weight of carbon and aluminum construction

reducing the need for double-shifting to find the right gear

Discrete markers take the pain out of set-up alignments

Black electroplated pillar seat post

SHIMANO Rear Derailleur RD-M3100, Alivio ,SGS, 9-Speed, Top Normal Compatio_Enriched and everything in betweenThe 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