Shimano Alivio RD-M3100 9 Speed Derailleur

Shimano's Alivio derailleur uses trickle down technology to offer consistent and crisp 9-speed 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 bike, the Alivio rear derailleur is a great choice.

Features include an adjustment barrel that is easily accessible, SHADOW design that makes the derailleur lower profile, total capacity of 45T, max low sprocket of 36T, min low sprocket of 32T, and compatibility with Alivio 9-speed shifters.