Shimano Alivio RD-M3100 9-Speed Rear Derailleur

9 Speed Done Right

Shimano’s Alivio 9-Speed Rear Derailleur uses trickle-down technology to offer consistent and crisp shifting performance. With the low profile SHADOW derailleur design you’ll be able to ride harder with fewer derailleur issues overall. So whether you’re searching for a replacement derailleur or are building up a new 9-speed bike, the Alivio rear derailleur is a great choice.

Features:

Adjustment barrel is easily accessible

Low profile SHADOW design

Total capacity: 45T

Max low sprocket: 36T, Min low sprocket: 32T

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Specifications

Mfg PartNum: ERDM3100SGS