What makes it special
Shimano / Bike Derailleurs
Shimano CUES U4020 SGS 9-Speed Rear Derailleur
A durable 2x9 CUES rear derailleur built for smooth shifting, wide compatibility, and e-bike-ready reliability.
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About this product
The details.
Extra durability for e-bike loads
The CUES RD-U4020 is Shimano's 2x9 rear derailleur for riders who need dependable shifting across city riding, long distances, and mixed-surface routes, with e-bike-rated durability added to the equation.
Its low-profile Shadow design helps protect the derailleur body, while 41T total capacity and 36T max sprocket support deliver practical gearing flexibility for daily riders who want function that lasts.
Product details
- Built for Shimano CUES 2x9 LINKGLIDE drivetrain systems
- E-bike rated design is tested for long-lasting performance under higher loads
- Low-profile Shadow body helps protect the derailleur in rougher riding conditions
- 41T total capacity supports versatile daily-riding gearing setups
- Handles cassettes with a 36T max low sprocket in 2x9 applications
- Cable adjuster and direct attachment simplify setup and tuning
- Stable performance works well on city streets, gravel, and light trail use
- A strong replacement or upgrade for riders who prioritize durability and smooth function
The details
Good to know-
Specs4
- Manufacturer part #
- ERDU4020SGS
- Cage
- Long cage
- Speed
- 9
- Largest cog
- 36t
Complete your setup
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