---
product_id: 338417840
title: "XT RD-M8100 Derailleur – 12-Speed Rear Derailleur for Mountain Bike – Black – Precision Bicycle Shifting"
brand: "shimano"
price: "$147"
currency: NZD
in_stock: true
url: https://www.desertcart.nz/products/338417840-xt-rd-m8100-derailleur-12-speed-rear-derailleur-for-mountain
store_origin: NZ
region: New Zealand
---

# Sleek black finish 12-speed precision shifting Aluminum build for durability XT RD-M8100 Derailleur – 12-Speed Rear Derailleur for Mountain Bike – Black – Precision Bicycle Shifting

**Brand:** shimano
**Price:** $147
**Availability:** ✅ In Stock

## Summary

> ⚡ Shift into the future with Shimano Deore XT – where precision meets power!

## Quick Answers

- **What is this?** XT RD-M8100 Derailleur – 12-Speed Rear Derailleur for Mountain Bike – Black – Precision Bicycle Shifting by shimano
- **How much does it cost?** $147 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/338417840-xt-rd-m8100-derailleur-12-speed-rear-derailleur-for-mountain)

## 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

- • **Optimized Ergonomics:** Refined lever axle and contact points for intuitive, fatigue-free control.
- • **Effortless Installation:** Designed for easy setup so you can hit the trail faster and stress-free.
- • **Precision 12-Speed Shifting:** Experience flawless gear transitions that keep you ahead on every trail.
- • **Robust Aluminum Construction:** Lightweight yet tough design built to withstand rugged rides and long-term use.
- • **Hydraulic Disc Brake Compatibility:** Quicker brake engagement with shorter free stroke for confident stopping power.

## Overview

The Shimano Deore XT RD-M8100-SGS is a high-performance 12-speed rear derailleur featuring a durable aluminum build and sleek black finish. Engineered for professional-grade shifting precision and optimized ergonomics, it integrates seamlessly with hydraulic disc brakes for rapid, reliable stopping. Lightweight at 200g and easy to install, it’s the ultimate upgrade for serious cyclists seeking control and confidence on every ride.

## Description

XT RD-M8100 Derailleur – 12-Speed Rear Derailleur for Mountain Bike – Black – Precision Bicycle Shifting

## Features

- Shimano DEORE XT - Hydraulic Disc Brake Lever - I-SPEC EV Clamp Band
- Intuitive and versatile braking keeps your focus on the trail: Optimized lever axle position with additional contact point and refined ergonomics & Greater flexibility and action-optimized pit layout
- High rigidity: Quicker brake engagement with shorter free stroke
- 2 finger brake lever
- Color: Black -- Right Brake Lever Only

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Shimano Inc. |
| Part number | IBLM8100R |
| Item Weight | 200 g |
| Product Dimensions | 16.99 x 11 x 11 cm; 200 g |
| Item model number | BLM8100R |
| Size | Standard |
| Color | Black |
| Style | Flat |
| Finish | Black |
| Material | Aluminum |
| Shape | Round |
| Item Package Quantity | 1 |
| Number Of Pieces | 1 |
| Handle Material | Aluminum |
| Special Features | Easy to install |
| Specific uses | Bicycles |
| Included components | 1 x Shimano Deore XT RD-M8100-SGS 12 Speed Rear Derailleur, Black |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Material:** Aluminum
- **Brand:** SHIMANO
- **Colour:** Black
- **Style:** Flat
- **Product dimensions:** 17L x 11W centimeters

## Images

![XT RD-M8100 Derailleur – 12-Speed Rear Derailleur for Mountain Bike – Black – Precision Bicycle Shifting - Image 1](https://m.media-amazon.com/images/I/41mAEwswtfL.jpg)

## Available Options

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

## Frequently Bought Together

- Hydraulic Right Brake Lever. Shim. DEORE XT BL-M8100 I-SP
- SHIMANO Maneta Freno Iz. 2-Dedos BL-M8100 Deore XT Freno Disco Multicolore Taille Unique
- Dymoece Bicycle Brake Olive and Brass Connecting Insert Kit for Shimano BH90 Bike Hydraulic Disc Brake Hose

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**Shop now:** [https://www.desertcart.nz/products/338417840-xt-rd-m8100-derailleur-12-speed-rear-derailleur-for-mountain](https://www.desertcart.nz/products/338417840-xt-rd-m8100-derailleur-12-speed-rear-derailleur-for-mountain)

---

*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-02-10*