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⚙️ Shift into adventure mode with Shimano’s stealthy, smooth operator!
The Shimano Alivio M3100 rear derailleur is a 9-speed, long cage SGS model featuring Shadow RD technology for enhanced durability and impact resistance. Built with lightweight aluminum and steel, it delivers precise, smooth shifting optimized for trail and trekking bikes. Its flat design reduces damage risk, while the HyperGlide system protects drivetrain components from wear. Ideal for riders seeking reliable performance and easy installation.
| ASIN | B08CGYD213 |
| Best Sellers Rank | 12,172 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) 9 in Bike Rear Dérailleurs |
| Brand | SHIMANO |
| Brand Name | SHIMANO |
| Case Material Type | Steel & Aluminum |
| Colour | Black |
| Customer Reviews | 4.6 out of 5 stars 625 Reviews |
| Global Trade Identification Number | 04550170621155 |
| Included Components | nothing |
| Item Dimensions L x W x H | 17L x 11W x 10H centimetres |
| Item Type Name | MTB ALIVIO M3100 Rear Derailleur 3x9S Long Stick 45 |
| Item Weight | 0.2 Kilograms |
| Item weight | 0.2 Kilograms |
| Manufacturer | SHIMANO |
| Manufacturer Part Number | ERDM3100SGS |
| Manufacturer Warranty Description | producer |
| Material | Aluminium |
| Material Type | Aluminium |
| Model Number | C8C086 |
| Mount Type | Shimano Rear Direct Mount |
| Mounting type | Shimano Rear Direct Mount |
| Number of Teeth | 36 |
| Product dimensions | 17L x 11W x 10H centimetres |
| UPC | 192790621159 |
| Unit Count | 1.0 Count |
R**O
Excellent replacement for scrapped gear set
Used these to replace the smashed ones when I fell off my bike. Took my time setting them up and used a new cable /chain and gear change is silky smooth.
S**E
Great value
Easy to fit and for a complete noob whom can't elven ride so knows nothing about bikes but had to repair my sons it was simple and easy fit replacement
B**N
The Quality of product
Very good derailed
A**Y
Good value for the money.
Fitted easily with no problems.
M**E
Works well
The Shimano Alivio RD-M3100 Rear Derailleur is an excellent choice for anyone looking to upgrade their 9-speed mountain bike's drivetrain. Featuring a sleek, low-profile design and Shadow RD technology, this derailleur provides smooth, reliable shifting while minimizing chain slap and damage from rocks. The 45-tooth total capacity and 36-tooth maximum low sprocket size make it compatible with a wide range of cassettes, while the adjustment barrel allows for easy tuning to achieve optimal shifting performance. Overall, I'm very impressed with the performance and durability of the Shimano Alivio RD-M3100 Rear Derailleur, and I would highly recommend it to anyone looking for a high-quality, reliable rear derailleur for their 9-speed mountain bike.
O**Y
Just the job!
Perfect fit, good price. Easy to change.
W**N
Good buy
Easy to use an install , good quality, way to adjust , and functions well
S**K
Working very well
Replace shimano sora. It’s working well, but max with 36 T so good for gravel but useless for mountain
Trustpilot
1 month ago
1 week ago