Shimano Cues Rear Derailleur RD-U4000 9-speed
 
This 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
 
Stable drivetrain performance on trails, gravel, and city streets
Optimized geometry and spring tension reduce chain drop
Low-profile design is optimized for rough terrain
Total capacity: 35T
Max low sprocket: 46T Min low sprocket: 41T
Designed and tested to provide enduring e-biking performance
E-Bike Rated