The Shimano CUES RD-U4020 SGS is a long-cage 9-speed Shadow rear derailleur for 2x9 drivetrains.

• 9-speed, 2x drivetrains
• Long (SGS) cage, 41T total capacity
• For 11-36T cassettes; 16T max front difference
• Shadow RD low-profile design
• Compatible with LINKGLIDE and HG 11 chains
• Suited to MTB, trekking and e-bikes