Shimano CUES RD-U6000-GS Rear Derailleur - 10/11-Speed Shadow Plus Design Direct Attach Medium Cage BLKShimano CUES RD U6000 GS Rear Derailleur 10 11 Speed Shadow Design Plus Direct Attach Medium Cage Black. Tackle trails with this versatile Shimano CUES RD U6000 Shadow+ 1x11 speed rear derailleurs seamless shifting and pedaling. Its low profile design and chain stabilization give riders the confidence to choose rougher routes. Stable drivetrain performance on trails gravel and city streets Chain stabilizer reduces chain drop slap and noise Shadow+ low