---
product_id: 360389843
title: "Shimano Deore Rd-M5100 Rear Derailleur"
brand: "shimano"
price: "¥18611"
currency: JPY
in_stock: true
reviews_count: 13
category: "Shimano"
url: https://www.desertcart.jp/products/360389843-shimano-deore-rd-m5100-rear-derailleur
store_origin: JP
region: Japan
---

# Shimano Direct Mount tech 51T max cog compatibility Long cage for smooth shifting Shimano Deore Rd-M5100 Rear Derailleur

**Brand:** shimano
**Price:** ¥18611
**Availability:** ✅ In Stock

## Summary

> 🚵‍♂️ Shift like a pro, conquer every trail!

## Quick Answers

- **What is this?** Shimano Deore Rd-M5100 Rear Derailleur by shimano
- **How much does it cost?** ¥18611 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/360389843-shimano-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

- • **Join the elite 4.7-star club:** Highly rated by riders who demand reliability and precision
- • **Gear up for the steepest climbs:** Handles up to a massive 51-tooth cog for ultimate trail dominance
- • **Precision engineered Shimano Direct Mount:** Seamless installation and rock-solid stability on your ride
- • **Trusted Shimano durability at a smart price:** Pro-level performance without breaking the bank
- • **Long cage design for flawless chain management:** Keeps your 11-speed drivetrain shifting silky smooth under pressure

## Overview

The Shimano Deore RD-M5100 Rear Derailleur is a high-performance 11-speed long cage derailleur designed for mountain biking. Compatible with up to a 51-tooth largest cog, it features Shimano's Direct Mount system for easy installation and enhanced stability. Renowned for durability and smooth shifting, it offers professional-grade quality at an accessible price point, backed by a strong 4.7-star user rating.

## Description

desertcart.com : Shimano Deore RD-M5100-SGS Rear Derailleur - 11-Speed, Long Cage, Black : Sports & Outdoors

Review: Good quality - Shimano always is good ! Fits and works perfect!
Review: Shimano quality, great price - What can I say? The Deore components by Shimano work great and don't break the bank. Make sure you have all the compatibility questions answered, and order with confidence.

## Features

- Compatible with a 51T maximum cog size for 11-speed systems
- Rear Derailleur Mount Type: Shimano Rear Direct Mount
- Cage Length: Long
- Largest Cog: 51

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B088XPFXGT |
| Best Sellers Rank | #67,862 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #23 in Rear Bike Derailleurs |
| Brand Name | SHIMANO |
| Customer Reviews | 4.7 4.7 out of 5 stars (147) |
| Date First Available | May 20, 2020 |
| Included Components | Rear Derailleur |
| Item Dimensions LxWxH | 5 x 3.75 x 6.75 inches |
| Item Package Dimensions L x W x H | 7.36 x 4.88 x 3.82 inches |
| Manufacturer | Shimano |
| Model Name | Deore M5100 Rear Derailleur |
| Number of Items | 1 |
| Package Weight | 0.49 Kilograms |
| Part Number | IRDM5100SGS |
| Product Dimensions | 10"L x 7"W x 3"H |
| Size | long cage |
| Sport Type | Cycling |
| Style | Rear Derailleur |
| Suggested Users | mens |
| UPC | 192790618708 |
| Warranty Description | Limited Warranty |

## Product Details

- **Brand:** SHIMANO
- **Color:** Black
- **Item Weight:** 1.08 Pounds
- **Material:** Multi
- **Mounting Type:** Direct Attachment (Shadow+)

## Images

![Shimano 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

### ⭐⭐⭐⭐⭐ Good quality
*by O***R on December 17, 2025*

Shimano always is good ! Fits and works perfect!

### ⭐⭐⭐⭐⭐ Shimano quality, great price
*by E***N on December 22, 2024*

What can I say? The Deore components by Shimano work great and don't break the bank. Make sure you have all the compatibility questions answered, and order with confidence.

### ⭐⭐⭐⭐⭐ It's a derailleur, nothing more- nothing less
*by R***Y on December 28, 2025*

Works great as I have replaced a broken RD with this one.

## 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.jp/products/360389843-shimano-deore-rd-m5100-rear-derailleur](https://www.desertcart.jp/products/360389843-shimano-deore-rd-m5100-rear-derailleur)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-03-08*