Shimano CUES RD-U4000 Rear Derailleur – 9-Speed Shadow Design (GS)
Shimano

Shimano CUES RD-U4000 Rear Derailleur – 9-Speed Shadow Design (GS)

$90.00
/
Tax included. Shipping calculated at checkout.
  • Click n Collect available
  • Free shipping on parts & accessories orders $150+
  • $15 freight for orders under $149.99

Shimano CUES RD-U4000 Rear Derailleur – 9-Speed Shadow Design (GS)

The Shimano CUES RD-U4000 rear derailleur is a tough, reliable 9-speed option built for modern recreational and trail bikes. Featuring Shimano’s low-profile Shadow Design and a wide-range GS medium cage, it delivers smooth, consistent shifting while staying protected from trail strikes and everyday riding abuse.

Designed as part of the Shimano CUES ecosystem, the RD-U4000 prioritises durability, chain stability and easy servicing — making it ideal for riders who want dependable performance without complexity.

Key Features

  • Compatible with Shimano CUES 9-speed drivetrains
  • GS (medium cage) for wide-range cassette compatibility
  • Shadow Design for a low-profile, trail-safe setup
  • Top-normal spring orientation
  • Direct mount attachment
  • Built for durability and everyday trail riding

Compatibility

  • ✔ 2026 Specialized Rockhopper Sport
  • ✔ 2026 Trek Marlin 5 Gen 3
  • ✔ Shimano CUES 9-speed shifters and cassettes

A great replacement or upgrade option for modern entry-to-mid level mountain bikes, the Shimano CUES RD-U4000 keeps shifting crisp, quiet and reliable — whether you're riding trails, paths or commuting.

Mackay Cycles Shimano CUES RD-U4000 rear derailleur 9 speed GS shadow design direct mount mountain bike derailleur replacement Intersport Rebel Anaconda Corry Giant Mackay Townsville Rockhampton Trek Specialized Merida Norco Trance Bike Store Bicycle Mountain Trail Mackay (CBD), East Mackay, West Mackay, South Mackay, North Mackay, Andergrove, Beaconsfield, Eimeo, Blacks Beach, Bucasia, Rural View, Dolphin Heads, Shoal Point, Paget, Ooralea, Bakers Creek, Rosella, Te Kowai, Walkerston, Glenella, Mount Pleasant, Erakala, Farleigh, Slade Point, Habana, Cape Hillsborough, Marian, Mirani, Finch Hatton, Seaforth, Sarina, Hay Point, Alligator Creek, Gracemere, Rockhampton, Kirwan, Townsville, Yeppoon, Bowen, Charters Towers, Magnetic Island, Great Barrier Reef, Heron Island, North West Island, Gladstone, Biloela, Alpha, Palm Island, Rollingstone, Balgal Beach, Toomulla, Bluewater, Toolakea, Saunders Beach, Yabulu, Black River, Hervey Range, Bushland Beach, Jensen
  • Free Shipping for Parts & Accessory orders over $150
  • $15 freight for orders $149.99 and under
  • More info on shipping

Specialized Bicycles

Specialized Clothing

TREK Mountain Bikes

TREK Road Bikes

TREK Kids Bikes

Scott Bicycles

Mens Bontrager Clothing

Rapha Sizing

KENNY FULLFACE HELMETS

GT RACE BMX

This site is protected by hCaptcha and the hCaptcha Privacy Policy and Terms of Service apply.

WHY CHOOSE US?

MACKAY CYCLES

Locally owned and operated family business

Our passion inspires the pursuit of freedom.  Absorb yourself in the ultimate cycling destination 

BACKED-UP

AFTER PURCHASE SERVICE

We provide after purchase service, warranty and advice on all the products we stock

Testimonials

★★★★★

Good range of products from “budget but not junk” to top shelf. Staff seem passionate and knowledgeable about bikes and ride themselves. Always a good experience shopping at Mackay Cycles.

Scott
Queensland, Australia
★★★★★

Good customer service, Service completed swiftly and ahead of schedule

Andrew
Queensland, Australia
★★★★★

The team had great knowledge on all the products and the customer service was awesome.

Luke
Queensland, Australia
★★★★★

Today I purchased my second bike through Mackay Cycles and couldn’t be happier. Very knowledgeable and helpful staff.

Hayden
Queensland, Australia

You may also like

Recently viewed

Back to COMPONENTS