---
product_id: 463153454
title: "Shimano Deore Rd-M5120 Rear Derailleur"
brand: "shimano"
price: "479 Lei"
currency: RON
in_stock: true
category: "Shimano"
url: https://www.desertcart.ro/products/463153454-shimano-deore-rd-m5120-rear-derailleur
store_origin: RO
region: Romania
---

# SGS long cage fits up to 46T cassette 10/11-speed compatibility Shadow RD+ clutch for chain stability Shimano Deore Rd-M5120 Rear Derailleur

**Brand:** shimano
**Price:** 479 Lei
**Availability:** ✅ In Stock

## Summary

> 🚵‍♂️ Shift Like a Pro, Ride Like a Legend

## Quick Answers

- **What is this?** Shimano Deore Rd-M5120 Rear Derailleur by shimano
- **How much does it cost?** 479 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/463153454-shimano-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

- • **Low-Profile Durability:** Compact body reduces impact damage risk on rocky, technical trails—built to endure your toughest rides.
- • **Chain Security Champion:** Shadow RD+ clutch technology eliminates chain slap and drop, keeping your ride smooth and silent.
- • **Extended Gear Range Ready:** SGS long cage design supports cassettes up to 46T, unlocking versatile terrain conquering power.
- • **Trusted Deore Performance:** Aluminum construction delivers reliable, consistent shifting that serious mountain bikers demand.
- • **Precision Shifting Mastery:** Seamlessly shifts across 10 & 11-speed MTB drivetrains for ultimate trail control.

## Overview

The Shimano Deore RD-M5120 Rear Derailleur is a high-performance 10/11-speed MTB component featuring Shadow RD+ clutch technology for chain stability, an SGS long cage accommodating up to 46T cassettes, and a low-profile design to minimize impact damage. Crafted from durable aluminum, it ensures precise, reliable shifting on demanding trail rides.

## Description

Buy Shimano RD-M5120 Deore 10/11-Speed Rear Derailleur | SGS Long Cage | Shadow RD+ | Chain Stabilizer | MTB online on desertcart.ae at best prices. ✓ Fast and free shipping ✓ free returns ✓ cash on delivery available on eligible purchase.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B089KDV5C7 |
| Best Sellers Rank | #92,805 in Sporting Goods ( See Top 100 in Sporting Goods ) #46 in Bike Rear Dérailleurs |
| Brand | SHIMANO |
| Brand Name | SHIMANO |
| Case Material Type | Aluminum |
| Color | Black |
| Colour | Black |
| Customer Reviews | 4.7 out of 5 stars 219 Reviews |
| Included Components | 1 x Shimano Deore RD-M5120-SGS 10/11 Speed Rear Derailleur, Black |
| Item Dimensions L x W x H | 20.3L x 12.7W x 10.2H centimeters |
| Item Type Name | Rear Derailleur |
| Item Weight | 203 Grams |
| Item weight | 203 Grams |
| Manufacturer | Shimano Inc. |
| Manufacturer Part Number | ERDM5120SGS |
| Material | Aluminum |
| Material Type | Aluminum |
| Model Number | Shimano |
| Mount Type | Braze-On Mount |
| Mounting type | Braze-On Mount |
| Number of Teeth | 42 |
| Product dimensions | 20.3L x 12.7W x 10.2H centimeters |
| UPC | 192790618548 |
| Warranty Description | No Warranty |

## Product Details

- **Brand:** SHIMANO
- **Colour:** Black
- **Item weight:** 203 Grams
- **Material:** Aluminum
- **Mounting type:** Braze-On Mount

## Images

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

## 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.ro/products/463153454-shimano-deore-rd-m5120-rear-derailleur](https://www.desertcart.ro/products/463153454-shimano-deore-rd-m5120-rear-derailleur)

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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-08-29*