Shimano CUES RD-U4000 9 Speed Rear Derailleur Size:M bikepacking and mixed-surface adventure riding

bikepacking and mixed-surface adventure riding is on your agenda

product strength and durability are always top design priorities

and in all cases

Clamp Width: 40mm

Safe on all chain types

Shimano CUES RD-U4000 9 Speed Rear Derailleur Size:M bikepacking and mixed-surface adventure ridingExpand your trail riding comfort zone with smooth operation and dependable performance. 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. FeaturesStable drivetrain performance on trails, gravel, and city streetsOptimized geometry and spring tension reduce chain