5042-866 Shimano Alivio RD-M4000 SGS 9 Speed Rear Derailleur

$64.95
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5042-866
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The strong, silent type. The Shimano Alivio RD-M4000 SGS rear derailleur is designed for aggressive riding. With its super low profile and single-tension construction, it does not hit the chainstay in rough riding conditions. It's smooth and quiet, featuring Shadow Rd technology for less trouble.