---
product_id: 329226134
title: "XTR M9100 12-Speed Rear Derailleur"
brand: "shimano"
price: "HK$2110"
currency: HKD
in_stock: true
reviews_count: 5
category: "Shimano"
url: https://www.desertcart.hk/products/329226134-xtr-m9100-12-speed-rear-derailleur
store_origin: HK
region: Hong Kong
---

# 12-speed precision shifting Cold forged aluminum durability 1x & 2x drivetrain compatibility XTR M9100 12-Speed Rear Derailleur

**Brand:** shimano
**Price:** HK$2110
**Availability:** ✅ In Stock

## Summary

> ⚡ Shift like a pro, ride like you own the trail.

## Quick Answers

- **What is this?** XTR M9100 12-Speed Rear Derailleur by shimano
- **How much does it cost?** HK$2110 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/329226134-xtr-m9100-12-speed-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

- • **Carbon Outer Cage Plate:** Enhanced stiffness and reduced weight for lightning-fast response.
- • **Pro-Level Long Cage Design:** Handles wide-range 10-51T cassettes with precision and reliability.
- • **Seamless 12-Speed Shifting:** Experience ultra-smooth gear transitions with Shimano’s top-tier 12-speed tech.
- • **Rugged Cold Forged Aluminum:** Built to last with a lightweight yet incredibly durable aluminum body.
- • **Versatile Drivetrain Compatibility:** Optimized for both 1x and 2x setups, adapting effortlessly to your ride style.

## Overview

The Shimano XTR M9100 12-Speed Rear Derailleur combines cutting-edge cold forged aluminum construction with a carbon outer cage plate to deliver unmatched durability and lightweight performance. Designed for both 1x and 2x drivetrains, it offers seamless shifting across a wide 10-51T gear range, making it the ultimate choice for serious cyclists seeking precision and reliability.

## Description

RD-M9100 XTR 12-speed rear derailleur, SGS long cage, for 10-51T/single ring

Review: Quality Derailleur - High quality derailleur as expected from Shimano XTR.
Review: 高価ですがXTより数段良かったです！ - 私の使用状況ではXTより数段良いです！シビアな12SのSHIMANOとSRAM製スプロケット両方で使用していますが、調整も超簡単で格段に気持ちよくスムーズなシフトで驚きました！何か秘密があるんでしょうね～ＸＴより１万以上も高いですが。。。でもXTや他メーカーには戻れません!壊れたらまた購入します！

## Features

- Cold forged aluminium body
- Front wheel drive compatibility: 1x and 2x
- Carbon outer cage plate

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07F2PBJTB |
| Best Sellers Rank | #84,157 in Sporting Goods ( See Top 100 in Sporting Goods ) #67 in Bike Derailleurs & Parts #83 in Bike Shifters & Parts |
| Brand | SHIMANO |
| Brand Name | SHIMANO |
| Case Material Type | Aluminum |
| Color | Standard |
| Colour | Standard |
| Country of Publication | Spain |
| Customer Reviews | 4.4 out of 5 stars 33 Reviews |
| Global Trade Identification Number | 04524667880257 |
| Included Components | Bike Parts |
| Item Dimensions L x W x H | 23L x 16W x 11H millimeters |
| Item Type Name | Bike Parts |
| Manufacturer | Shimano XTR |
| Manufacturer Part Number | IRDM9100SGS |
| Material | Aluminum |
| Material Type | Aluminum |
| Model Number | RDM9100SGS |
| Mount Type | Clamp-On Mount |
| Mounting type | Clamp-On Mount |
| Number of Teeth | 12 |
| Product dimensions | 23L x 16W x 11H millimeters |

## Product Details

- **Brand:** SHIMANO
- **Colour:** Standard
- **Material:** Aluminum
- **Item weight:** 0.42 Kilograms
- **Mounting type:** Clamp-On Mount

## Images

![XTR M9100 12-Speed Rear Derailleur - Image 1](https://m.media-amazon.com/images/I/71aHFM69RHL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Quality Derailleur
*by R***R on 9 August 2024*

High quality derailleur as expected from Shimano XTR.

### ⭐⭐⭐⭐⭐ 高価ですがXTより数段良かったです！
*by A***ー on 7 February 2023*

私の使用状況ではXTより数段良いです！シビアな12SのSHIMANOとSRAM製スプロケット両方で使用していますが、調整も超簡単で格段に気持ちよくスムーズなシフトで驚きました！何か秘密があるんでしょうね～ＸＴより１万以上も高いですが。。。でもXTや他メーカーには戻れません!壊れたらまた購入します！

### ⭐⭐⭐⭐⭐ Shimano Qualität
*by J***D on 18 January 2025*

Wie zu erwarten hohe Qualität.

## Frequently Bought Together

- SHIMANO XTR M9100 12-Speed Rear Derailleur
- Stan's NoTubes Tire Sealant
- SHIMANO Mineral Oil

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**Shop now:** [https://www.desertcart.hk/products/329226134-xtr-m9100-12-speed-rear-derailleur](https://www.desertcart.hk/products/329226134-xtr-m9100-12-speed-rear-derailleur)

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-07-31*