The Shimano CUES RD-U4000 is a 9-speed LINKGLIDE rear derailleur with a medium-length GS cage and a low-profile Shadow RD design.

• 9-speed, 1x drivetrains, Shimano CUES LINKGLIDE
• GS (medium) cage, 35T total capacity
• Fits 11-41T to 11-46T cassettes (CS-LG400-9, CS-LG300-9)
• SHIMANO SHADOW RD low-profile design
• E-bike rated
• Works with SL-U4000-9R / SL-U4010-9R shifters and LINKGLIDE or 11-speed HG chains