Shimano CUES RD-U4020-SGS Rear Derailleur - 9-Speed | Medium Cage | LINKGLIDE Front Derailleurs 5 is light and tough

5 is light and tough enough to survive seasons of punishment on the trails

Works well as a standalone solution or paired with other Feedback Sports wall storage for a fully organized space

and it resists water washout for year-round riding

Muc-Off products are formulated to work together

Shimano CUES RD-U4020-SGS Rear Derailleur - 9-Speed | Medium Cage | LINKGLIDE Front Derailleurs 5 is light and toughWhat Makes the Shimano CUES RD U4020 Different from Standard MTB Derailleurs? The Shimano CUES RD U4020 SGS is a 9 speed rear derailleur built specifically for the LINKGLIDE shifting system Shimano's durability focused drivetrain platform engineered for high use applications including trekking bikes, e bikes, and utility cycles where reliability and service life matter more than weight savings. The Shadow low profile design protects the mechanism from