---
product_id: 434505662
title: "Deore Rd-M5120 Rear Derailleur"
brand: "shimano"
price: "€ 96.95"
currency: EUR
in_stock: true
url: https://www.desertcart.nl/products/434505662-deore-rd-m5120-rear-derailleur
store_origin: NL
region: Netherlands
---

# Chain stabilizer for quiet ride 41t max capacity SHIMANO SHADOW RD+ low profile Deore Rd-M5120 Rear Derailleur

**Brand:** shimano
**Price:** € 96.95
**Availability:** ✅ In Stock

## Summary

> 🚵‍♂️ Shift like a pro, conquer every trail with Shimano Deore precision!

## Quick Answers

- **What is this?** Deore Rd-M5120 Rear Derailleur by shimano
- **How much does it cost?** € 96.95 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/434505662-deore-rd-m5120-rear-derailleur)

## 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

- • **Quiet Confidence:** Chain stabilizing tech minimizes chain drop and drivetrain noise on rugged terrain.
- • **Rock-Smart Design:** Low-profile SHIMANO SHADOW RD+ protects your derailleur from trail hazards.
- • **Versatile Capacity:** Handles up to 42t (2x setups) and 46t (1x setups) for all your MTB adventures.
- • **Lightweight Durability:** Crafted from aluminum for a perfect balance of strength and weight savings.
- • **Precision Shifting Mastery:** Supports 10 & 11-speed HG-X cassettes for smooth, reliable gear changes.

## Overview

The Shimano Deore RD-M5120 rear derailleur features a rugged aluminum build and SHIMANO SHADOW RD+ low-profile design to protect against trail damage. Compatible with 10 and 11-speed HG-X cassettes, it supports up to 46t gearing capacity, delivering smooth, quiet, and reliable shifting performance for serious mountain bikers.

## Description

Deore Rd-M5120 Rear Derailleur

## Features

- Material: aluminum
- Capacity: 41t
- Cassette Range: [2 x 11/10] 42t, [1 x 10] 46t
- Gearing: [long] 2 x 11, 2 x 10, 1 x 10
- Compatibility: HG-X11 11-speed, HG-X 10-speed

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Product Dimensions | 8"L x 5"W x 4"H |
| Manufacturer | Shimano |
| UPC | 192790618548 |
| Item Package Dimensions L x W x H | 7.76 x 4.92 x 3.7 inches |
| Package Weight | 0.44 Kilograms |
| Item Dimensions  LxWxH | 8 x 5 x 4 inches |
| Brand Name | SHIMANO |
| Warranty Description | Limited Warranty |
| Model Name | Rear Derailleur |
| Suggested Users | mens |
| Number of Items | 1 |
| Part Number | ERDM5120SGS |
| Style | Rear Derailleur |
| Included Components | Rear Derailleur |
| Size | 10/11 Speed |
| Sport Type | Cycling |

## Product Details

- **Brand:** SHIMANO
- **Color:** Black
- **Material:** Aluminum
- **Item Weight:** 203 Grams
- **Mounting Type:** Braze-On Mount

## Images

![Deore Rd-M5120 Rear Derailleur - Image 1](https://m.media-amazon.com/images/I/61a1EK2nXzL.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Questions & Answers

**Q: I have an older mtn bike with a 10speed deore. Can I run this derailleur with my current shimano 10sp shifter? The shimano deore sl-m610?**
A: I believe that Shimano's 10 spd mtn shifters are pretty much the same, regardless of the year. I'm using a 10 spd Zee shifter with it and it works fine.

**Q: will this work on a 10 s road bike with 11x42 (rear)?**
A: I honestly don't know, but it is designed for use with 42-46T cassettes as long as the shifter has the same pull ratio, theoretically it will work with both 10- and 11-speed shifters. Google says a mtb derailleur should work.

**Q: Can i use this with my 9 speed shifter and 9 speed cassette?**
A: Not out of the box. When Shimano went to 10 speed, they altered the shifter/derailleur pull. JTek may make a pulley that will allow you to do so, but you'll need to visit their website and pore through the compatibility charts there. If you find one, then you'll need to find a retailer that carries it. Honestly, it would be easier just to find a 9 speed derailleur unless you already have this derailleur and need to find a solution to get it to work.

**Q: Will this fit a 11t-46t 10 speed cassette?**
A: Yes it will. I just did mine

## Frequently Bought Together

- Shimano Deore Rd-M5120 Rear Derailleur
- SHIMANO SL-M6000 Deore Shift Lever, Band-on, 10-Speed, Right Hand
- Shimano Deore CS-M4100-10 Cassette - 10-Speed, 11-46t, Silver

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**Shop now:** [https://www.desertcart.nl/products/434505662-deore-rd-m5120-rear-derailleur](https://www.desertcart.nl/products/434505662-deore-rd-m5120-rear-derailleur)

---

*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-01-28*