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Description
Shimano CUES RD-U3020-SGS Rear Derailleur - 9-Speed, Shadow Design, Direct Attach, Long Cage, BlackMake cycling an essential part of your fitness lifestyle with the Shimano CUES Shadow RD U3020 9 speed rear derailleur. Designed for daily riding dependability, its smooth and decisive rear shifting will keep you moving around town and into the countryside. ONLY compatible with Shimano CUES 9 Speed LINKGLIDE shifters. ONLY compatible with Shimano CUES 9 Speed LINKGLIDE shifters Stable drivetrain performance on trails, gravel, and city streets Shadow
Make cycling an essential part of your fitness lifestyle with the Shimano CUES Shadow RD-U3020 9-speed rear derailleur. Designed for daily riding dependability, its smooth and decisive rear shifting will keep you moving around town and into the countryside. ONLY compatible with Shimano CUES 9-Speed LINKGLIDE shifters.- ONLY compatible with Shimano CUES 9-Speed LINKGLIDE shifters
- Stable drivetrain performance on trails, gravel, and city streets
- Shadow low-profile design protects rear derailleur from obstacles in a wide variety of riding scenes
- 11t pulley wheels
- Compatible with LINKGLIDE AND HG 11-speed chains
Product Specifics
- Largest Cog: 36
- Color: Black
- Color: Silver
- Rear Der/Shifter Compatibility: Shimano Mountain
- Rear Derailleur Mount Type: Shimano Rear Direct Mount
- Rear Derailleur Mount Type: 10x1 Standard
- Drivetrain Speeds: 9
- Designed for ebike: Yes
- Chain Wrap Capacity (teeth): 41
- Cage Length: Long
Today's Stock Status
Currently not available
UPC: 192790171937
EAN: Not available
Manufacturer Part Number: Does Not Apply
RD0138
181382-Q0-L
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.5 ★★★★★
Based on 29 reviews
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Product Reviews
★★★★★ 5
Great wireless mouse for everyday use
Color: White and Silver
This mouse is lightweight, easy to use, and works perfectly. The wireless connection is stable, and the battery lasts a long time. It is comfortable to use for work and everyday tasks. Great value for the price. I would definitely recommend it.
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Reviewed in the United States on June 10, 2026
★★★★★ 5
Quiet, Sleek, and Surprisingly Premium for the Price
Color: White and Gold
I’ve gone through a lot of wireless mice over the years, but this one genuinely surprised me. The design looks much more premium in person — the black and gold finish gives it a sleek modern setup vibe without looking cheap or flashy.
The mouse is super lightweight, smooth, and almost silent when clicking, which honestly makes a bigger difference than I expected. Great for late-night work, studying, or coffee shop use without annoying everyone around you.
Setup took seconds — plugged in the nano receiver and it worked instantly with my laptop. No lag, no connection issues, and the tracking has been very responsive on different surfaces. Battery life has also been solid so far.
For the price, this feels like one of those underrated tech finds that ends up becoming part of your everyday setup. Clean aesthetic, quiet performance, portable, and reliable. Definitely exceeded expectations.
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Reviewed in the United States on May 22, 2026
★★★★★ 5
Nice, quiet and durable mouse
Color: Black and Gold
After trying several mice, I purchased one of these. It is small and very quiet. Since I spend many hours a day at a computer that can be rough on mice. I have since purchased more of these. It will take the average user quite a while to wear one out. And they are inexpensive.
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Reviewed in the United States on May 30, 2026
★★★★★ 5
Incredible Precision and Comfort for Gaming and Design
Size: Standard, Size: Standard
After using this mouse for a couple of weeks, it just confirmed again why I’m such a fan of Razer products. The ergonomics are excellent, and it feels surprisingly lightweight considering it uses a AA battery. The low latency with Hyperspeed technology is fantastic, and the sensor precision is seriously impressive. I spend hours playing Fortnite and the connection has been completely reliable the whole time. I’m also a designer, so I need accuracy for detailed work in Illustrator, and this mouse has performed perfectly for both gaming and professional use. Definitely one of the best wireless mice I’ve used.
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Reviewed in the United States on May 16, 2026
★★★★★ 5
Excellent Wireless Mouse with Great Performance
Size: Standard
The Razer Basilisk V3 X HyperSpeed is an outstanding gaming mouse. The wireless connection is fast and reliable with no noticeable lag, and the mechanical switches feel crisp and responsive. It’s comfortable to hold even during long sessions, and the customizable buttons add a lot of flexibility for both gaming and productivity. Battery life is impressive, and overall it delivers great performance for the price.
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Reviewed in the United States on January 12, 2026
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