Shimano CUES U4020 SGS 9-Speed Rear Derailleur in Black

Shimano CUES U4020 SGS 9-Speed Rear Derailleur

Long cage / Black
$48.00
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Shimano CUES U4020 SGS 9-Speed Rear Derailleur in Black

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.

$48.00
Cage
Color

Ship to store · free pickup, usually ready in 4–7 business days

Store availability

Shimano CUES U4020 SGS 9-Speed Rear Derailleur

Long cage / Black

Available to ship to any of our stores. Order online and pick it up free, usually in 4–7 business days.

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Shimano CUES U4020 SGS 9-Speed Rear Derailleur

Long cage / Black

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Free pickup at any of our four stores. Questions? We're happy to help.

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

What makes it special

The little details. The big difference.

The details

Good to know-

Specs4
Manufacturer part #
ERDU4020SGS
Cage
Long cage
Speed
9
Largest cog
36t

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