Shimano
The Shimano CUES RD-U4020 rear derailleur is designed for 2x9-speed drivetrains, offering reliable performance and smooth shifting for trekking, e-bike, and city cycling. It features a long cage and Shadow RD technology for reduced chain slap and improved safety.
Checked Jul 9, 2026 14:40
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Product details
The Shimano CUES RD-U4020 rear derailleur is designed for use with 2x9-speed drivetrains, making it suitable for trekking, e-bike, and city cycling applications. It features a long cage and is compatible with cassettes up to 36 teeth. The derailleur utilizes Shimano's Shadow RD technology, which provides a low profile design to reduce the risk of the derailleur hitting the chainstay in rough riding conditions. This results in smooth and silent performance. The RD-U4020 is designed to work with Shimano LinkGlide cassettes, providing smoother and quieter pedaling, as well as barely noticeable shifting. It is constructed from a combination of materials including aluminum, polyamide, glass fiber reinforced plastic (GFRP), steel, and stainless steel.
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