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Ships within 48 hours · Estimated delivery Jul 24 - Jul 29
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Description
Shimano DEORE RD-M4120 10/11-speedThe Shimano DEORE RD M4120 10 11 speed Rear Derailleur is a top of the line product designed by industry experts for optimal performance. It features advanced 10 11 speed technology and precision engineering, making it a must have for serious cyclists. With its professional, scientific tone and emphasis on fact based information, this rear derailleur is an essential addition to any bike. The Shimano DEORE RD M4120 2x10 11 speed rear derailleur for 11
The Shimano DEORE RD-M4120 10/11-speed Rear Derailleur is a top-of-the-line product designed by industry experts for optimal performance. It features advanced 10/11-speed technology and precision engineering, making it a must-have for serious cyclists. With its professional, scientific tone and emphasis on fact-based information, this rear derailleur is an essential addition to any bike.
The Shimano DEORE RD-M4120 2x10/11-speed rear derailleur for 11-42 cassette features an elegant yet aggressive angled design and an attractive anodised aluminium surface
Features - Shimano DEORE RD-M4120 2x10/11-speed Rear Derailleur
- Shadow RD+ For optimal chain retention
-
RD-M4120-SGS
- 42T max cog size with 2x10-speed and 2x11-speed 11-42-teeth cassette
Product features
- Use: MTB
- Group: SLX M4100
- Model: RD-M4120
- Mount: Direct Mount
- Technology: Shadow RD+
- Gradations: SGS-Type 2x10-speed (11-42) / 2x11-speed (11-42)
- Compatible chain: HG-X 10-speed / 11-speed
- Max. teeth large sprocket: 42T
- Min. teeth large sprocket: 42T
- Max. teeth small sprocket: 11T
- Min. teeth small sprocket: 11T
- Max. Front Difference: 10T
- Total Capacity: 41T
Material
- Aluminum
- GFRP
- Stainless steel
- Steel
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
4.1 ★★★★★
Based on 6 reviews
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Product Reviews
★★★★★ 5
Quality Under Armour socks
Size: Large, Color: (100) White / White / Black
Nice medium thick sock that is breathable but cushioned. It stays put in the show and doesn’t fall down. Fit is true to size, no show/minimal show
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Reviewed in the United States on May 2, 2026
★★★★★ 5
Perfect Pairs
Size: Large, Color: (100) White / White / Black
Very comfortable, soft & affordable..
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Reviewed in the United States on May 19, 2026
★★★★★ 5
Excellent athletic socks
Size: Large, Color: (100) White / White / Black
Solid athletic socks at a great price. Not too thick, not too thin. Second time I've purchased them. They last longer than most socks I've used in the past too.
Only concern is the sizing. I may be reading the sizing chart wrong, but for my size 13 feet it says XL are the correct sock size. I've ordered Large twice and they're perfect. I would imagine the size Large socks would also fit up to size 14 shoe, but probably need to go with XL if foot is lager than 14.
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Reviewed in the United States on April 12, 2026
★★★★★ 4
Great product
Size: Large, Color: (035) Steel / White / Black
Comfortable fit perfect
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Reviewed in the United States on March 15, 2026
★★★★★ 5
Quality No Show Socks That Are Comfortable and Durable
Size: Large, Color: (100) White / White / Black
These Under Armour no show socks are great for everyday training and casual wear. The cotton blend feels comfortable and they stay in place throughout the day. Getting six pairs in a pack is solid value for a quality brand. They hold up well after multiple washes and the no show style works great with most athletic shoes. A reliable go-to sock.
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Reviewed in the United States on April 30, 2026