---
product_id: 283980251
title: "Sram MTB Gx Type 2.1 Long Cage Rear Derailleur - Black, 10-Speed"
brand: "sram"
price: "$48.44"
currency: USD
in_stock: false
url: https://www.desertcart.ec/products/283980251-sram-mtb-gx-type-2-1-long-cage-rear-derailleur
store_origin: EC
region: Ecuador
---

# Optimized 10-speed drivetrain compatibility Exact Actuation tech for pinpoint shifts 36-tooth cassette cage for rugged terrain Sram MTB Gx Type 2.1 Long Cage Rear Derailleur - Black, 10-Speed

**Brand:** sram
**Price:** $48.44
**Availability:** ❌ Out of Stock

## Summary

> ⚡ Shift Like a Pro, Ride Like You Own the Trail

## Quick Answers

- **What is this?** Sram MTB Gx Type 2.1 Long Cage Rear Derailleur - Black, 10-Speed by sram
- **How much does it cost?** $48.44 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/283980251-sram-mtb-gx-type-2-1-long-cage-rear-derailleur)

## Best For

- sram enthusiasts

## Why This Product

- Trusted sram brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **10-Speed Powerhouse:** Seamlessly conquer trails with a drivetrain optimized for smooth, reliable 10-speed performance.
- • **Lightweight & Agile:** At just 0.88 pounds, this derailleur balances strength and weight for enhanced bike handling and speed.
- • **Versatile Cage Length:** Medium cage design supports up to a 36-tooth cassette, giving you the flexibility to tackle steep climbs and fast descents.
- • **Trail-Ready Durability:** Built with a robust chassis and aluminum construction to withstand the toughest mountain biking conditions.
- • **Precision Shifting Mastery:** Experience flawless gear changes with SRAM’s Exact Actuation technology, engineered for unmatched accuracy.

## Overview

The SRAM MTB GX Type 2.1 Long Cage Rear Derailleur is a precision-engineered 10-speed component featuring Exact Actuation technology for reliable, crisp shifting. Designed with a durable aluminum chassis and a medium-length cage capable of handling up to a 36-tooth cassette, it’s built to excel in demanding mountain biking environments. Lightweight and robust, this derailleur ensures optimal performance and versatility for serious riders.

## Description

Product Description               SRAM Rear Derailleur GX Type 2.1 10-Speed Long Cage designed with Exact Actuation technology for precise and dependable 10-speed performance focused chassis design for all conditions and usage 36-tooth cassette capable cage, lengths are short, medium and long.                  Set Contains:               1 x Sram Mtb Gx Type 2.1 10-Speed Medium Cage Black Rear Derailleur

## Features

- Exact Actuation technology
- Precise and dependable 10-speed performance focused chassis design
- 36-Tooth cassette capable cage

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Sram MTB |
| UPC | 710845771828 |
| Global Trade Identification Number | 00710845771828 |
| Color | Black |
| Size | 10 Speed |
| Style | Medium |
| Height | 3.2 inches |
| Length | 6.65 inches |
| Weight | 0.88 Pounds |
| Width | 6.6 inches |
| Material Type | Aluminum |
| Number of Items | 1 |
| Number of Pieces | 1 |
| Season | continuity 2015 |
| Usage | cycling |
| Included Components | Rear Deraille |
| Batteries Included? | No |
| Department | Unisex |
| Item model number | 00.7518.080.001 |
| Product Dimensions | 8 x 8 x 25 cm; 68 g |
| ASIN | B00V8RZB58 |

## Product Details

- **Brand:** Sram
- **Colour:** Black
- **Material:** Aluminum
- **Item weight:** 68 Grams
- **Mounting type:** Braze-On Mount

## Images

![Sram MTB Gx Type 2.1 Long Cage Rear Derailleur - Black, 10-Speed - Image 1](https://m.media-amazon.com/images/I/617d3tl81RL.jpg)
![Sram MTB Gx Type 2.1 Long Cage Rear Derailleur - Black, 10-Speed - Image 2](https://m.media-amazon.com/images/I/61dTV3IU0WL.jpg)
![Sram MTB Gx Type 2.1 Long Cage Rear Derailleur - Black, 10-Speed - Image 3](https://m.media-amazon.com/images/I/61FCt816MpL.jpg)
![Sram MTB Gx Type 2.1 Long Cage Rear Derailleur - Black, 10-Speed - Image 4](https://m.media-amazon.com/images/I/61vqpli0gbL.jpg)
![Sram MTB Gx Type 2.1 Long Cage Rear Derailleur - Black, 10-Speed - Image 5](https://m.media-amazon.com/images/I/71rzCCLcykL.jpg)

## Available Options

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

## Questions & Answers

**Q: What size should I use for a 36 -11 casette?**
A: Forgive me, but you are asking the wrong question.The cage size is controlled by the maximum amount of slack chain created by the combination of chain rings AND cassette. This is called "Chain Wrap".To formula for chain wrap is (Big Chain Ring - Small Chain Ring) + (Big cassette Cog - Small Cassette Cog).  So if you are using a compact double chain ring (50-34) and a 11-36 cassette the numbers work out to (50 minus 34) + (36 minus 11) or 16 + 25 = 41.  This means that if you shift from a big-big combination to a small-small combination, your derailleur has to be able to handle 41 teeth of loose chain, which calls for a long cage.  On my bike a have a single 40 tooth chain ring and a 11-42 cassette so the chain wrap works out to (40 - 40) + (42 - 11) = 0 + 31 = 31.   So even though I have a huge cassette I only need a medium cage because I have no front derailleur to create more chain wrap.Hope that helps.

**Q: what is short, medium.long cage?**
A: It has to do with chain wrap capacity. Small=30t Chainwrap Capacity, Medium=35t, Long=47t. The wrap is just the difference between the number of chain ring teeth plus the difference between the cog teeth. For example a 53/39 with a 12-25 cassette requires 14 + 13 = 27 teeth of wrap capacity needed from the RD.

**Q: Will this work with Shimano Ultegra shifter**
A: No, actuation will only work with sram.... The good news is that it will work with both sram 10 speed road and Mtb... Unlike the newer 11 speeds witch are road or mtb specific.

**Q: Can this be used with a shimano  11/42 cassette ?**
A: I used it with a sunrace 11-42 cassette but I needed a longer b tension screw(which was not provided) so you will likely run into the same issue.

## Frequently Bought Together

- Sram MTB Gx Type 2.1 Long Cage Rear Derailleur - Black, 10-Speed
- SRAM GX Trigger Shifter 10-Speed Rear Black
- SRAM PC-1051 10 Speed Chain w/PowerLock 114 Links

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*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-02-15*