Rear derailleur Shimano CUES RD-U4000 1x9-speed

Rear derailleur for MTB, trekking and e-bikes. Compatible only with the LINKGLIDE shifting system.

Features and technical specifications

• Stable drivetrain performance on trails, gravel and city streets
• Optimized geometry and spring tension help reduce chain drop
• Low-profile design optimized for rough terrain
• Total capacity: 35T
• Designed and tested for enduring performance on e-bikes
• E-BIKE RATED
• SHIMANO SHADOW RD
• Use: MTB, trekking, e-bike
• Group: CUES U4000
• Model: RD-U4000
• Direct attachment
• GS-type, 1x9-speed
• Compatible chains: LINKGLIDE, HG 11-speed
• Maximum teeth on the largest sprocket: 46T
• Minimum teeth on the largest sprocket: 41T
• Maximum teeth on the smallest sprocket: 11T
• Minimum teeth on the smallest sprocket: 11T
• Medium GS-type pulley cage
• Materials: aluminum, stainless steel, steel, PA-GF

Technologies

LINKGLIDE delivers smooth shifting and pedaling performance designed to last. It supports easy riding and ownership across evolving bike types and riding styles. This exceptionally durable drivetrain is built to withstand persistent daily wear and provide lasting shifting and pedaling performance for multi-purpose bikes and high-torque e-bikes. The robustly engineered cassette shifts smoothly up and down the gears while significantly reducing drivetrain wear. It features an optimized shifting gate design. Robust cassette teeth resist damage when shifting and pedaling under high torque.

SHADOW RD is a rear derailleur mechanism intended for more aggressive riding. Its super-low-profile design offers several benefits: thanks to its low profile and single-tension construction, the derailleur does not hit the chainstay in rough riding conditions. The result is smooth and quiet performance.

STEPS stands for SHIMANO Total Electric Power System. The component group is developed around the idea of complete integration and the principle that an e-bike should still primarily be a bicycle. This includes comfortable, natural handling and riding, as well as balanced power delivery while pedaling. The SHIMANO STEPS concept enables cyclists to combine experiencing nature and healthy exercise with exceptionally smooth motor assistance.