---
product_id: 216478948
title: "Black,ERDM3100SGS Alivio Alivio M3100 rear derailleur, 9-speed, Shadow design, SGS long cage"
brand: "shimano"
price: "263.57 DT"
currency: TND
in_stock: true
category: "Shimano"
url: https://www.desertcart.tn/products/216478948-black-erdm3100sgs-alivio-alivio-m3100-rear-derailleur-9-speed-shadow
store_origin: TN
region: Tunisia
---

# Sleek black Shadow design 9-speed precision shifting Durable steel & aluminum build Black,ERDM3100SGS Alivio Alivio M3100 rear derailleur, 9-speed, Shadow design, SGS long cage

**Brand:** shimano
**Price:** 263.57 DT
**Availability:** ✅ In Stock

## Summary

> ⚙️ Shift into the future with Shimano’s stealthy precision!

## 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?** 263.57 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

- • **SGS Long Cage Power:** Optimized chain tension for superior performance on varied terrains.
- • **Lightweight Durability:** Crafted from premium steel and aluminum for strength without the bulk.
- • **Shadow Design Advantage:** Low-profile, sleek black finish reduces snagging and boosts bike aesthetics.
- • **Trusted Shimano Quality:** Backed by a top-rated brand with 4.5-star reviews and proven reliability.
- • **Seamless 9-Speed Shifting:** Experience ultra-smooth gear transitions for every trail challenge.

## Overview

The SHIMANO ERDM3100SGS Alivio M3100 rear derailleur is a 9-speed, long cage drivetrain component featuring a sleek Shadow design in black. Built from durable steel and aluminum, it offers smooth, reliable shifting and optimized chain management for mountain biking enthusiasts seeking performance and style.

## Description

SHIMANO,Black,ERDM3100SGS Alivio Alivio M3100 rear derailleur, 9-speed, Shadow design, SGS long cage : desertcart.co.uk: Sports & Outdoors

## Features

- Sports product

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08CGYD213 |
| Best Sellers Rank | 6,968 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) 4 in Bike Rear Dérailleurs |
| Brand Name | SHIMANO |
| Case Material Type | Steel & Aluminum |
| Colour | Black |
| Customer Reviews | 4.5 4.5 out of 5 stars (690) |
| 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 |
| Manufacturer | SHIMANO |
| Manufacturer Part Number | ERDM3100SGS |
| Manufacturer Warranty Description | producer |
| Material Type | Aluminium |
| Model Number | C8C086 |
| Mount Type | Shimano Rear Direct Mount |
| Number of Items | 1 |
| Number of Teeth | 36 |
| UPC | 192790621159 |
| Unit Count | 1.0 count |

## Product Details

- **Brand:** SHIMANO
- **Colour:** Black
- **Item weight:** 0.2 Kilograms
- **Material:** Aluminium
- **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** 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: 2026-10-16*