---
product_id: 148691586
title: "SHIMANO XT RD-M8100-SGS RD-M8120-SGS 12-Speed Rear Derailleur, Long Cage, Black"
brand: "shimano"
price: "€ 231.56"
currency: EUR
in_stock: true
reviews_count: 13
url: https://www.desertcart.fi/products/148691586-shimano-xt-rd-m8100-sgs-rd-m8120-sgs-12-speed
store_origin: FI
region: Finland
---

# Capacity: 35t/41t 1 x 12 gearing Aluminum build SHIMANO XT RD-M8100-SGS RD-M8120-SGS 12-Speed Rear Derailleur, Long Cage, Black

**Brand:** shimano
**Price:** € 231.56
**Availability:** ✅ In Stock

## Summary

> 🚴‍♂️ Shift into Adventure with Shimano!

## Quick Answers

- **What is this?** SHIMANO XT RD-M8100-SGS RD-M8120-SGS 12-Speed Rear Derailleur, Long Cage, Black by shimano
- **How much does it cost?** € 231.56 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/148691586-shimano-xt-rd-m8100-sgs-rd-m8120-sgs-12-speed)

## 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

- • **Robust Capacity:** Handle steep climbs with a capacity of up to 41t for the SGS model.
- • **Unleash Your Ride:** Experience seamless shifting with Shimano's precision engineering.
- • **Smooth Performance:** Enjoy a flawless ride with a cassette range of 10-51t for ultimate versatility.
- • **Lightweight Durability:** Crafted from aluminum for a balance of strength and weight savings.
- • **Versatile Compatibility:** Designed for Shimano 12-speed systems, ensuring a perfect fit.

## Overview

The SHIMANO XT RD-M8100-SGS RD-M8120-SGS is a high-performance 12-speed rear derailleur designed for mountain biking enthusiasts. With a robust aluminum construction, it offers a capacity of 35t for the GS model and 41t for the SGS model, ensuring compatibility with Shimano's 12-speed systems. The derailleur supports a wide cassette range of 10-45t for GS and 10-51t for SGS, providing riders with the versatility needed for various terrains.

## Description

The Shimano Deore XT RD-M8100/M8120 rear derailleur is designed to provide smooth and stable shifting for 12-speed MTB transmissions. Delivers fast and shock-free change. Low profile design includes an added bumper to the derailleur pulley cage Shimano Shadow RD+ technology reduces chain shock and creates a quieter transmission Includes large 13 ton pulley The long cage is designed to be used with 2x12 transmission systems.

## Features

- Material: aluminum
- Capacity: (GS) 35t [SGS] 41t
- Cassette Range: [GS] 10-45t, [SGS] 10-51t
- Gearing: 1 x 12
- Compatibility: Shimano 12-speed

## Images

![SHIMANO XT RD-M8100-SGS RD-M8120-SGS 12-Speed Rear Derailleur, Long Cage, Black - Image 1](https://m.media-amazon.com/images/I/61cSoHYj5QL.jpg)
![SHIMANO XT RD-M8100-SGS RD-M8120-SGS 12-Speed Rear Derailleur, Long Cage, Black - Image 2](https://m.media-amazon.com/images/I/61oU38odZHL.jpg)
![SHIMANO XT RD-M8100-SGS RD-M8120-SGS 12-Speed Rear Derailleur, Long Cage, Black - Image 3](https://m.media-amazon.com/images/I/61K6rQZps-L.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Works exactly as described!
  

*by R***. on Reviewed in the United States on March 4, 2024*

Works exactly as described!  I love it!  Great precise shifting.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Durable smooth derailleur.
  

*by D***7 on Reviewed in the United States on March 27, 2023*

Shifts smooth even under load on uphill climbs and durable. Mine has taken some hits, but still functions perfectly.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
    ENSOR XT SHIMANO
  
  

*by J***Z on Reviewed in the United States on April 8, 2024*

PERFECTO EL ENVIO LLEGA EN SU CAJA ORIGNAL MUY PUNTUAL. DE LOS MEJORES TENSORES EN EL MERCADO. SUAVE ESTABLE. PRECISO. ESTOY PROBANDO CON UNA PACHA NX DE SRAM Y UN SHIFTER OPALANCA DE SRAM GX VA BIEN AL MOMENTO. NO LA HE PROBADO EN MONTAÑA COMO DEBE SER PERO AL MMOENTO SE DEJE CONFIGURAR PARA HACER LOS CAMBIOS FLUIDOS EXACTOS Y SIN RETRASOS. SI HAY ALGO DE ERROR LA ESTARIA CAMBIANDO POR LA PALANCA XT.

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**Shop now:** [https://www.desertcart.fi/products/148691586-shimano-xt-rd-m8100-sgs-rd-m8120-sgs-12-speed](https://www.desertcart.fi/products/148691586-shimano-xt-rd-m8100-sgs-rd-m8120-sgs-12-speed)

---

*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-02-25*