Shimano Alivio RD-M3100 Alivio Rear Derailleur - 9-speed - Shadow Desi

Shimano Alivio M3100 9v Shadow SGS Direct Rear Derailleur

4.6 (68)

Shimano Alivio RD-M3100 Alivio Rear Derailleur - 9-speed - Shadow Desi

Overall Rating: 3.5 / 5 (average from multiple review sources, as of 6 Oct 2026)
Based on a total of 4,581 customer reviews from independent review platforms.

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1-3 working days
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£22.99
Delivery from £3.95

Shimano Alivio M3100 Shadow Rd Direct Rear Derailleur Black 9s / Max 45t 9s Black

Overall Rating: 3.9 / 5 (average from multiple review sources, as of 18 Oct 2026)
Based on a total of 43,251 customer reviews from independent review platforms.

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1 working day(s)
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£23.99
Delivery from £6.99

Shimano M3100 Alivio 9-Speed Rear Derailleur Shadow SGS Long Cage

Overall Rating: 1.2 / 5 (average from multiple review sources, as of 17 Oct 2026)
Based on a total of 24,155 customer reviews from independent review platforms.

Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.

All brand names and logos are the property of their respective owners.

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Will usually delivered within 1 - 2 working days of receiving cleared payment.
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£26.39
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Shimano Alivio M3100 9-Speed Rear Derailleur Shadow SGS Long Cage

Overall Rating: 1.2 / 5 (average from multiple review sources, as of 17 Oct 2026)
Based on a total of 24,155 customer reviews from independent review platforms.

Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.

All brand names and logos are the property of their respective owners.

Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
Cheapest Total Price
Will usually delivered within 1 working day of receiving cleared payment.
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£26.39
Free Delivery

Shimano Alivio M3100 9 Speed Rear Derailleur

Overall Rating: 1.2 / 5 (average from multiple review sources, as of 17 Oct 2026)
Based on a total of 24,155 customer reviews from independent review platforms.

Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.

All brand names and logos are the property of their respective owners.

Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
Will usually delivered within 2 - 3 working days of receiving cleared payment.
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£26.87
Delivery from £3.00

Shimano Alivio M3100 Rear Derailleur - Black

Overall Rating: 1.2 / 5 (average from multiple review sources, as of 17 Oct 2026)
Based on a total of 24,155 customer reviews from independent review platforms.

Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.

All brand names and logos are the property of their respective owners.

Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
Will usually delivered within 3 - 5 working days of receiving cleared payment.
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£27.89
Free Delivery

Shimano Alivio M3100 Rear Derailleur 9 Speed Shadow Design SGS Long Cage Black

Overall Rating: 4.5 / 5 (average from multiple review sources, as of 19 Oct 2026)
Based on a total of 97,980 customer reviews from independent review platforms.

Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.

All brand names and logos are the property of their respective owners.

Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
2 to 3 days
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£27.99
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Shimano Alivio Alivio M3100 rear derailleur, 9-speed, SGS long cage

Overall Rating: 1.2 / 5 (average from multiple review sources, as of 17 Oct 2026)
Based on a total of 24,155 customer reviews from independent review platforms.

Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.

All brand names and logos are the property of their respective owners.

Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
Will usually delivered within 3 - 4 working days of receiving cleared payment.
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£28.69
Free Delivery

Shimano M3100 Alivio Shadow Design SGS Long Cage 9 Speed Rear Derailleur one size

Overall Rating: 4.8 / 5 (average from multiple review sources, as of 18 Oct 2026)
Based on a total of 4,771 customer reviews from independent review platforms.

Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.

All brand names and logos are the property of their respective owners.

Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
2-4 Working days
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£31.99
Delivery from £4.99
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Shimano Alivio RD-M3100 Alivio Rear Derailleur - 9-speed - Shadow Desi

Cheapest offer

Great value Alivio M3100 rear derailleur offering crisp performance on- and off-road for 9-speed drive trains Shadow design with smooth skid plate surface features a super low profile design that reduces the risk of damage from trail side hazards Wide link design increases rigidity and service life Alloy body and outer link leads to lower weight without compromising strength and durability 11-tooth pulleys for reduced pulley wear and chain noise Advanced light action design with low friction fluorine coated link pivot bushings For use with 32 to 36 tooth low rear sprockets, total capacity 45 teeth Top-normal swing design Compatible with 9-speed Hyperglide sprockets
£22.99
1-3 working days
fawkes-cycles.co.uk

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Product information

At a glance

  • Compact design minimizes damage risk on trails.
  • Smooth shifting for effortless gear transitions.
  • Wide compatibility with various 9-speed systems.

Note: This text was created with the help of AI.

Discover the Shimano Alivio RD-M3100 9-Speed Rear Derailleur!

The Shimano Alivio RD-M3100 9-speed rear derailleur is the perfect choice for both casual riders and adventurous cyclists looking to enhance their gear shifting experience. Whether you're a weekend warrior, a mountain trail enthusiast, or simply navigating city streets, this reliable component elevates your bike performance. With its precision engineering, it’s designed for those who value quality and functionality in their Bike Gears.

Functional Features and Advantages

The Shimano Alivio RD-M3100 boasts a host of features that make it stand out in the market. Its Shadow design provides a low profile that reduces the risk of damage from trail obstacles while also offering improved chain stability. This derailleur is designed for smooth and precise shifting across 9-speed cassettes, ensuring you can tackle any terrain with ease. With a maximum sprocket size of 34 teeth, you’ll enjoy a wide gearing range that can handle steep climbs or fast descents effortlessly!

Stylish Appearance and Design

Not only is the Shimano Alivio RD-M3100 efficient, but it also features a sleek, modern design that complements any bike style. The dark grey finish provides a rugged yet stylish look, making it an attractive addition to your bike's components. The robust construction ensures durability, so you can rely on it for many rides to come. This derailleur is not just about performance; it also adds a touch of sophistication to your bike!

Versatile Compatibility

This derailleur is compatible with a variety of Shimano 9-speed systems, making it a versatile choice for many bike types. Its easy installation process means you can quickly upgrade your bike without hassle. With the Shimano Alivio RD-M3100, you’re not just investing in a part; you’re enhancing your entire cycling experience, giving you the confidence to ride harder and further!

Note: This text was created with the help of AI.

Pros and cons

Pros

  • Smooth, precise shifting
  • Strong durability
  • Versatile compatibility
  • Sleek, modern design
  • Wide gearing range

Cons

  • Best suited for 9-speed systems
  • May lack advanced features

Note: This text was created with the help of AI.

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User reviews

Our reviews come from Trustami, a service that automatically collects, links, and verifies reviews from various sources such as Google, eBay, Amazon, and Trusted Shops. This gives users a transparent overview of a manufacturer's customer satisfaction.

4.6 out of 5 stars

68 Ratings
5 stars
56
4 stars
4
3 stars
3
2 stars
3
1 star
2
Amazon.de Customer

Good quality, works from the get-go

via trustami

Amazon.de Customer

I bought a slightly used bike on a classifieds site, where this derailleur was installed. Unfortunately, I only noticed later that the cage was slanted. The middle gears often required a bit of “thinking time” when shifting. The bike was taken to a workshop, also to check the shift lever, where they…

via trustami

Amazon.de Customer

fits

via trustami

Amazon.de Customer

Fits great 👍 Thanks

via trustami

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