Shimano SLX RD-M7100 12-Speed Rear Derailleur

When you absolutely need to be in a different gear, the instant and worry-free shifting of a Shimano SLX RD-M7100 12-Speed Rear Derailleur seems heaven-sent. With a new low-profile design, this 12 speed rear mech is silent, secure, and has that famous Shimano feel.