---
product_id: 450501060
title: "Deore Rd-M5100 Rear Derailleur"
brand: "shimano"
price: "£86.09"
currency: GBP
in_stock: true
reviews_count: 5
category: "Shimano"
url: https://www.desertcart.co.uk/products/450501060-deore-rd-m5100-rear-derailleur
store_origin: GB
region: United Kingdom
---

# 1x11-speed precision 51T max cog compatibility Shadow RD chain stabilizer Deore Rd-M5100 Rear Derailleur

**Brand:** shimano
**Price:** £86.09
**Availability:** ✅ In Stock

## Summary

> ⚙️ Shift into the future of trail dominance!

## Quick Answers

- **What is this?** Deore Rd-M5100 Rear Derailleur by shimano
- **How much does it cost?** £86.09 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/450501060-deore-rd-m5100-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

- • **Max Cog Power:** Compatible with up to 51T cogs, giving you the climbing advantage on any trail.
- • **Lightweight Durability:** Crafted from alloy steel and aluminum for a perfect balance of strength and featherlight performance.
- • **Rock-Smart Low Profile:** Designed to dodge trail hazards, its sleek low-profile build keeps your derailleur safe from rocks and debris.
- • **Chain Stability Mastered:** Shadow RD system minimizes chain slap, drop, and noise for a whisper-quiet ride.
- • **Effortless 11-Speed Shifting:** Experience seamless gear changes with Shimano’s 1x11-speed drivetrain technology.

## Overview

The Shimano Deore RD-M5100 Rear Derailleur is a robust, 1x11-speed drivetrain component featuring the innovative Shadow RD chain stabilizer system. Engineered for trail riders, it supports up to a 51-tooth cog for superior climbing, boasts a low-profile design to resist damage, and ensures silent, stable shifting. Made from durable alloy steel and aluminum, it weighs just over a pound, combining strength with lightweight efficiency.

## Description

2009949(086)9/27

Review: ... boxed as new
Review: Arrivato con gabbia schiacciata perché non aveva un imballaggio, ma solo un sacchetto.

## Features

- 1x11-speed Shimano SHADOW RD rear derailleur
- Features the Shadow RD chain stabilizer system to minimize chain slap Compatible with a 51T maximum cog size for 11-speed systems
- Stable drivetrain on the trail
- Low-profile design avoids damage from rocks
- Chain stabilizer reduces chain drop, slap and noise
- Silent drivetrain in all gear positions

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B088XPFXGT |
| Brand Name | SHIMANO |
| Case Material Type | Aluminum |
| Color | Black |
| Customer Reviews | 4.6 4.6 out of 5 stars (147) |
| Included Components | Rear Derailleur |
| Item Dimensions L x W x H | 12.7L x 9.5W x 17.1H centimeters |
| Item Weight | 1.08 Pounds |
| Manufacturer | SHIMANO |
| Manufacturer Part Number | IRDM5100SGS |
| Material Type | Alloy Steel |
| Model Number | IRDM5100SGS 3/15 |
| Mount Type | Shimano Rear Direct Mount |
| Number of Teeth | 11 |
| UPC | 192790618708 |

## Product Details

- **Brand:** SHIMANO
- **Colour:** Black
- **Item weight:** 490 g
- **Material:** Alloy Steel
- **Mounting type:** Shimano Rear Direct Mount

## Images

![Deore Rd-M5100 Rear Derailleur - Image 1](https://m.media-amazon.com/images/I/51U9BjYCj1L.jpg)

## Available Options

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

## Questions & Answers

**Q: will this work for 1X11- 51 Teeth drive terrain?**
A: Yes. It's designed for 1x11 speed drive train. I  use it on a 11-51 cassette.

**Q: Would this work for a 11-46 eight speed cassette?**
A: No

**Q: Does it have a clutch?**
A: Yes it has a clutch

**Q: Can I attach this 5100 w/o the G link which was part of my prior shimano deraillor?**
A: It should bolt to your existing derailleur hanger.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by J***T on 7 November 2025*

... boxed as new

### ⭐ Review
*by E***A on 29 August 2023*

Arrivato con gabbia schiacciata perché non aveva un imballaggio, ma solo un sacchetto.

### ⭐⭐⭐⭐⭐ Review
*by H***R on 24 February 2025*

Shinmano eben. Montiert, eingestellt und funktioniert. Keine Probleme

## Frequently Bought Together

- Shimano Deore Rd-M5100 Rear Derailleur
- SHIMANO Cs-M5100 Cassette 11 Speed, 11-51T
- SHIMANO Deore SL-M5100 Shifter Right, Clamp Band/11 Speed

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**Shop now:** [https://www.desertcart.co.uk/products/450501060-deore-rd-m5100-rear-derailleur](https://www.desertcart.co.uk/products/450501060-deore-rd-m5100-rear-derailleur)

---

*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-06-29*