---
product_id: 640570519
title: "Rear Derailleur RD-TZ31A 6/7 Speed Direct/Hanger Mount Derailleur for Mountain Tricycle Commuter Cruiser Bike"
brand: "relwears"
price: "€ 34.80"
currency: EUR
in_stock: true
reviews_count: 8
url: https://www.desertcart.pt/products/640570519-rear-derailleur-rd-tz31a-6-7-speed-direct-hanger-mount
store_origin: PT
region: Portugal
---

# Precision multi-point adjustment 6/7 speed compatibility Durable aluminum alloy build Rear Derailleur RD-TZ31A 6/7 Speed Direct/Hanger Mount Derailleur for Mountain Tricycle Commuter Cruiser Bike

**Brand:** relwears
**Price:** € 34.80
**Availability:** ✅ In Stock

## Summary

> 🚴‍♂️ Shift into the future of smooth rides—because your bike deserves precision and style!

## Quick Answers

- **What is this?** Rear Derailleur RD-TZ31A 6/7 Speed Direct/Hanger Mount Derailleur for Mountain Tricycle Commuter Cruiser Bike by relwears
- **How much does it cost?** € 34.80 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/640570519-rear-derailleur-rd-tz31a-6-7-speed-direct-hanger-mount)

## Best For

- relwears enthusiasts

## Why This Product

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

## Key Features

- • **Precision-Tuned Adjustments:** Fine-tune your ride with high-hardness aluminum alloy body adjustments for flawless gear changes every time.
- • **Seamless 6/7 Speed Shifting:** Effortlessly glide through gears with smooth, reliable performance tailored for mountain and commuter bikes.
- • **Silent & Smooth Chain Guide:** Experience whisper-quiet rides thanks to the PA nylon wear-resistant guide wheel that minimizes abrasion and noise.
- • **Quick & Hassle-Free Installation:** Get back on the road faster with a direct mount design that’s easy to install and maintain—no mechanic needed.
- • **Robust Aluminum Alloy Durability:** Built to last with premium materials that ensure stability and resilience on every trail or city street.

## Overview

The Rear Derailleur RD-TZ31A is a high-performance 6/7 speed direct mount derailleur crafted from durable aluminum alloy. Designed for mountain, commuter, and cruiser bikes, it offers precise multi-point adjustments and a silent, wear-resistant guide wheel for smooth, reliable gear changes. Easy to install and maintain, it ensures stable and efficient shifting for an elevated cycling experience.

## Description

Rear Derailleur RD-TZ31A 6/7 Speed Direct/Hanger Mount Derailleur for Mountain Tricycle Commuter Cruiser Bike

## Features

- MODEL: RD-TZ31A Direct Mount Rear Derailleur,Suitable for 6/7speed.
- STABILITY: Durable aluminum alloy material and excellent shifting performance ensure safe and stable ridin
- PRECISE ADJUSTMENT: High-hardness aluminum alloy body adjustment, adjustment is more precise. It can be adjusted slightly in multiple places to ensure accurate speed change performance.
- MUE GUIDE WHEEL: PA nylon wear-resistant aluminum alloy guide wheel, silent, smooth and no abrading for chain.
- INSTALLATION:Fast and convenient installation and easy maintenance.(Note:The bike rear derailleur is direct mount,not hanger mount .Please check the mount type of the original part before ordering.)
- SCOPE OF APPLICATION:Suitable for mountain bikes, station wagons, folding bikes, etc.If you have any questions,please feel free to contact us.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Relwears |
| Item Package Dimensions L x W x H | 5.39 x 4.92 x 2.91 inches |
| Package Weight | 0.34 Kilograms |
| Brand Name | Relwears |
| Warranty Description | 1 |
| Model Name | RD-TZ31-A 6/7 Speed |
| Included Components | NO |
| Size | 6/7 Speed |

## Product Details

- **Brand:** Relwears
- **Color:** RD-TZ31A-Direct Mount
- **Material:** Aluminum
- **Item Weight:** 0.34 Kilograms
- **Mounting Type:** Direct Mount

## Images

![Rear Derailleur RD-TZ31A 6/7 Speed Direct/Hanger Mount Derailleur for Mountain Tricycle Commuter Cruiser Bike - Image 1](https://m.media-amazon.com/images/I/61jn72+TC-L.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works like factory original
*by T***. on June 23, 2025*

Easy to install just remove one wheel and bend the bracket no need for chain breaker. Same quality as original , shifts normal.

### ⭐⭐⭐⭐⭐ Replaced the broken one perfectly
*by K***K on August 28, 2025*

Fast shipping, work great.

### ⭐⭐⭐⭐ Build quality I question
*by T***1 on September 20, 2025*

The replacement dérailleur did fix my skipping issue (must have been a bent hanger). Although a one for one replacement for a Box store Mongoose MTB, the installation was not smooth. Removal of the lower idler jockey wheel to get the chain threaded on - the frame bracket become floppy and extremely loose making it time consuming to get the pulley on. I almost aborted to return this part as damaged goods. I had to tightened the upper jockey wheel screw as much as i could to reassemble. Once done it seemed okay.. Build quality is definitely not as good as the original in my opinion. Can not rate 5 stars.

## Frequently Bought Together

- Rear Derailleur RD-TZ31A 6/7 Speed Direct/Hanger Mount Derailleur for Mountain Tricycle Commuter Cruiser Bike
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**Shop now:** [https://www.desertcart.pt/products/640570519-rear-derailleur-rd-tz31a-6-7-speed-direct-hanger-mount](https://www.desertcart.pt/products/640570519-rear-derailleur-rd-tz31a-6-7-speed-direct-hanger-mount)

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-03-16*