---
product_id: 756514394
title: "Rear Derailleur, Huazu Bike Parts Gear Shifter for RD-TZ31-A with Direct Mount/Hanger Mount for 6/7 Speed Mountain Bicycles"
brand: "huazu"
price: "22751 Ft"
currency: HUF
in_stock: true
reviews_count: 5
category: "Huazu"
url: https://www.desertcart.hu/products/756514394-rear-derailleur-huazu-bike-parts-gear-shifter-for-rd-tz31
store_origin: HU
region: Hungary
---

# Direct mount design 6/7 speed compatibility Durable aluminum alloy Rear Derailleur, Huazu Bike Parts Gear Shifter for RD-TZ31-A with Direct Mount/Hanger Mount for 6/7 Speed Mountain Bicycles

**Brand:** huazu
**Price:** 22751 Ft
**Availability:** ✅ In Stock

## Summary

> 🚴‍♂️ Shift into the future with precision and power!

## Quick Answers

- **What is this?** Rear Derailleur, Huazu Bike Parts Gear Shifter for RD-TZ31-A with Direct Mount/Hanger Mount for 6/7 Speed Mountain Bicycles by huazu
- **How much does it cost?** 22751 Ft with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hu](https://www.desertcart.hu/products/756514394-rear-derailleur-huazu-bike-parts-gear-shifter-for-rd-tz31)

## Best For

- huazu enthusiasts

## Why This Product

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

## Key Features

- • **Premium Aluminum Alloy:** Crafted from durable aluminum and plastic alloys for long-lasting stability and performance.
- • **Wide Gear Range Capacity:** Supports up to 34T total capacity with sprockets ranging from 14T to 28T for versatile terrain handling.
- • **Robust Direct Mount Build:** Engineered with a direct mount system for quick installation and enhanced frame compatibility.
- • **Seamless 6/7 Speed Shifting:** Optimized for GS 6/7 speed SIS Index drivetrains, ensuring smooth gear transitions on every ride.
- • **Universal Fit for Adventure:** Perfectly compatible with mountain, road, and folding bikes—upgrade your ride with confidence.

## Overview

The Huazu RD-TZ31-A Rear Derailleur is a high-performance, direct mount gear shifter designed for 6 and 7-speed mountain bikes. Made from durable aluminum alloy, it offers stable and reliable shifting with a total capacity of 34T, accommodating sprockets from 14T to 28T. Compatible with various bike types, this derailleur ensures smooth, precise gear changes for the modern cyclist seeking both durability and versatility.

## Description

Huazu Rear Derailleur, Bike Parts Gear Shifter for Shimano RD-TZ31-A with Direct Mount/Hanger Mount for 6/7 Speed Mountain Bicycles : desertcart.co.uk: Sports & Outdoors

Review: Good replacement derailer...
Review: decent derailleur for the cost but wont fit my bike so I had to return it and they accepted no problems.

## Features

- MODEL: RD-TZ31-A bike rear derailleur, Compatible with GS 6 / 7 speed SIS Index Shifting drivetrains.
- STABILITY: Durable aluminum alloy and plastic alloy material, Providing excellent shifting performance ensure safe and stable.
- PARM: Total capacity 34T, Largest sprocket 28T, Smallest sprocket 14T, Front chain wheel tooth difference 20T.
- NOTE: The bike rear derailleur is direct mount, not hub bolt mount. Please check the mount type of the original part before ordering, if bike frame with hook, as picture shows, you can use it.
- COMPATIBILITY: Suitable for mountain bikes, road bikes, folding bicycles and so on.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Product dimensions | 13L x 10W x 4H centimetres |
| Manufacturer | Huazu |
| UPC | 731235765869 |
| Color | Black |
| Size | L |
| Material type | Aluminium |
| Batteries included? | No |
| Department | Unisex |
| Item model number | RDTZ31A |
| ASIN | B09WRBHZNT |

## Product Details

- **Brand:** Huazu
- **Colour:** Black
- **Material:** Aluminium
- **Item weight:** 0.28 Kilograms
- **Mounting type:** Braze-On Mount

## Images

![Rear Derailleur, Huazu Bike Parts Gear Shifter for RD-TZ31-A with Direct Mount/Hanger Mount for 6/7 Speed Mountain Bicycles - Image 1](https://m.media-amazon.com/images/I/613AeawjxwL._AC_SX679_.jpg)
![Rear Derailleur, Huazu Bike Parts Gear Shifter for RD-TZ31-A with Direct Mount/Hanger Mount for 6/7 Speed Mountain Bicycles - Image 2](https://m.media-amazon.com/images/I/614PDFHqeDL._AC_SL1500_.jpg)
![Rear Derailleur, Huazu Bike Parts Gear Shifter for RD-TZ31-A with Direct Mount/Hanger Mount for 6/7 Speed Mountain Bicycles - Image 3](https://m.media-amazon.com/images/I/614PDFHqeDL._AC_SX679_.jpg)
![Rear Derailleur, Huazu Bike Parts Gear Shifter for RD-TZ31-A with Direct Mount/Hanger Mount for 6/7 Speed Mountain Bicycles - Image 4](https://m.media-amazon.com/images/I/618xziKPMsL._AC_SX679_.jpg)
![Rear Derailleur, Huazu Bike Parts Gear Shifter for RD-TZ31-A with Direct Mount/Hanger Mount for 6/7 Speed Mountain Bicycles - Image 5](https://m.media-amazon.com/images/I/61Rq-zVU36L._AC_SX679_.jpg)

## Questions & Answers

**Q: Does it work with mongoose R4050WM 21 speed mountain bike?**
A: I used it on my teens mongoose, unsure of the model, but I would think so?

**Q: Does it work for a 21 speed bike?**
A: Yes, we used it for a 21 Speed Mongoose bike

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by M***H on 17 December 2025*

Good replacement derailer...

### ⭐⭐⭐ Review
*by A***R on 18 September 2022*

decent derailleur for the cost but wont fit my bike so I had to return it and they accepted no problems.

### ⭐⭐⭐⭐⭐ Review
*by A***R on 27 July 2025*

Produto chegou correto, foi instalado e funciona perfeitamente.

## Frequently Bought Together

- Rear Derailleur, Huazu Bike Parts Gear Shifter for RD-TZ31-A with Direct Mount/Hanger Mount for 6/7 Speed Mountain Bicycles
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- FGBNM Single/6/7/8/9/10/11/12 Speed Bike Chain, Bike Chain for Road Mountain Racing Cycling

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**Shop now:** [https://www.desertcart.hu/products/756514394-rear-derailleur-huazu-bike-parts-gear-shifter-for-rd-tz31](https://www.desertcart.hu/products/756514394-rear-derailleur-huazu-bike-parts-gear-shifter-for-rd-tz31)

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*Product available on Desertcart Hungary*
*Store origin: HU*
*Last updated: 2026-02-07*