Shimano CUES RD-U4000

This Shimano CUES RD-U4000 Shadow 1x9-speed rear derailleur's smooth operation and dependability will help inspire riders to expand their trail-riding comfort zone. Its low-profile design and chain stabilization will give them the confidence to choose rougher routes. CUES 9-speed Stable drivetrain performance on trails, gravel, and city streets Shadow low-profile design protects rear derailleur from obstacles in a wide variety of riding scenes Optimized geometry and spring tension reduce chain drop Designed and tested to provide enduring e-biking performance 13t pulley wheels Compatible with LINKGLIDE AND HG 11-speed chains