---
product_id: 216478948
title: "Black,ERDM3100SGS Alivio Alivio M3100 rear derailleur, 9-speed, Shadow design, SGS long cage"
brand: "shimano"
price: "329.55 DT"
currency: TND
in_stock: true
url: https://www.desertcart.tn/products/216478948-black-erdm3100sgs-alivio-alivio-m3100-rear-derailleur-9-speed-shadow
store_origin: TN
region: Tunisia
---

# SGS long cage for smooth chain management 9-speed precision shifting Shadow RD tech for impact resistance Black,ERDM3100SGS Alivio Alivio M3100 rear derailleur, 9-speed, Shadow design, SGS long cage

**Brand:** shimano
**Price:** 329.55 DT
**Availability:** ✅ In Stock

## Summary

> ⚙️ Shift into the future of trail mastery with Shimano Alivio M3100SGS!

## Quick Answers

- **What is this?** Black,ERDM3100SGS Alivio Alivio M3100 rear derailleur, 9-speed, Shadow design, SGS long cage by shimano
- **How much does it cost?** 329.55 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/216478948-black-erdm3100sgs-alivio-alivio-m3100-rear-derailleur-9-speed-shadow)

## Best For

- shimano enthusiasts

## Why This Product

- Trusted shimano brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **All-Season Reliability:** Engineered for consistent performance across all weather conditions and terrains.
- • **Trail-Ready Durability:** Shadow RD design minimizes damage from trail obstacles, keeping your ride smooth and worry-free.
- • **Optimized Spring Tension:** Prevents chain strikes on the stay, enhancing drivetrain longevity and performance.
- • **Precision 9-Speed Shifting:** HyperGlide system ensures crisp, reliable gear changes for every terrain.
- • **Lightweight Aluminium Build:** At just 0.4 kg, it balances strength and weight for agile mountain biking.

## Overview

The Shimano Alivio M3100SGS rear derailleur features advanced Shadow RD technology and a long SGS cage, delivering durable, precise 9-speed shifting optimized for mountain biking. Its flat design and spring tension reduce damage risks, while lightweight aluminium construction ensures reliable all-season performance.

## Description



## Features

- The Shimano Alivio rear derailleur with Shadow RD technology is even better than its predecessor for trail and trekking use
- Thanks to the very flat design and the optimised spring tension, a strike on the chain stay is prevented and even trail obstacles have hardly a chance of damaging the rear derailleur.
- The rear derailleur supports nine gear levels and the HyperGlide system, which protects the drive components from premature wear.
- Shimano

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Product dimensions | 17L x 11W x 10H centimetres |
| Manufacturer | SHIMANO |
| UPC | 192790621159 |
| Global Trade Identification Number | 04550170621155 |
| Bike type | Mountain Bike |
| Color | Black |
| Size | One Size |
| Style | Single |
| Weight | 0.4 Kilograms |
| Material type | Aluminium |
| Number of items | 1 |
| Seasons | All-Season |
| Sport | Cycling |
| Included components | nothing |
| Batteries included? | No |
| Department | Unisex |
| Item model number | C8C086 |
| ASIN | B08CGYD213 |

## Product Details

- **Brand:** SHIMANO
- **Colour:** Black
- **Material:** Aluminium
- **Item weight:** 0.2 Kilograms
- **Mounting type:** Shimano Rear Direct Mount

## Images

![Black,ERDM3100SGS Alivio Alivio M3100 rear derailleur, 9-speed, Shadow design, SGS long cage - Image 1](https://m.media-amazon.com/images/I/51x63EFYbSL.jpg)

## Available Options

This product comes in different **Style Name** options.

## Questions & Answers

**Q: Would this work with a 42t cassette?**
A: Shimano are listing the max sprocket size as 36T. You may be able to get it to work on a 42T with a hanger extender.

**Q: Will this work on an 8 speed cassette**
A: It is designed for a 9 speed setup but should work fine on 8 speed also.

**Q: Would this work in 9 x 1 setup and how large can the cassette go?**
A: Yes it should be fine on a 1 x 9 setup, the max sprocket on the Shimano website is 45T

## Frequently Bought Together

- Shimano,Black,ERDM3100SGS Alivio Alivio M3100 Rear derailleur, 9-Speed, Shadow Design, SGS Long cage
- SHIMANO Alivio SL-M3100 Alivio Shift Lever, 9-Speed, Band on, Right Hand,Black

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**Shop now:** [https://www.desertcart.tn/products/216478948-black-erdm3100sgs-alivio-alivio-m3100-rear-derailleur-9-speed-shadow](https://www.desertcart.tn/products/216478948-black-erdm3100sgs-alivio-alivio-m3100-rear-derailleur-9-speed-shadow)

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-01-26*