---
product_id: 346929734
title: "Road Mountain MTB Bicycle Bike Rear Derailleur Hanger w/M10 Bolt Extender for upgrading Shimano Larger Cassette use"
brand: "swishti"
price: "€ 20.41"
currency: EUR
in_stock: true
reviews_count: 6
url: https://www.desertcart.hr/products/346929734-road-mountain-mtb-bicycle-bike-rear-derailleur-hanger-w-m10
store_origin: HR
region: Croatia
---

# M10 bolt included 42mm length AL7075 aluminum Road Mountain MTB Bicycle Bike Rear Derailleur Hanger w/M10 Bolt Extender for upgrading Shimano Larger Cassette use

**Brand:** swishti
**Price:** € 20.41
**Availability:** ✅ In Stock

## Summary

> 🚴‍♂️ Elevate Your Cycling Game!

## Quick Answers

- **What is this?** Road Mountain MTB Bicycle Bike Rear Derailleur Hanger w/M10 Bolt Extender for upgrading Shimano Larger Cassette use by swishti
- **How much does it cost?** € 20.41 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/346929734-road-mountain-mtb-bicycle-bike-rear-derailleur-hanger-w-m10)

## Best For

- swishti enthusiasts

## Why This Product

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

## Key Features

- • **Upgrade Your Ride:** Transform your bike's performance with this essential extender kit.
- • **Lightweight Design:** Weighing only 17g, it adds performance without the bulk.
- • **Professional Quality:** Manufactured with high-grade materials for long-lasting durability.
- • **Precision Engineering:** Crafted for accuracy, ensuring smooth shifts and enhanced stability.
- • **Versatile Compatibility:** Easily fits larger cassettes from 34T to 52T for both MTB and road bikes.

## Overview

The Road Mountain MTB Bicycle Bike Rear Derailleur Hanger with M10 Bolt Extender is designed for cyclists looking to upgrade their Shimano systems. With a total length of 42mm and a center distance of 25mm, this extender kit allows compatibility with larger cassettes, enhancing shift speed and adjustment range. Made from durable AL7075 aluminum, it combines lightweight design with professional-grade quality.

## Description

Road Mountain MTB Bicycle Bike Rear Derailleur Hanger w/M10 Bolt Extender for upgrading Shimano Larger Cassette use

## Features

- MTB Road E-BIke Rear Derailleur Hanger extender kit with bolts, fit 34-52t MTB Road bike larger cassette
- A Little longer of center distance, 25mm, easily compatible with 40/42/46/50/52T for MTB and 34/36/40/42T for road. Total length is 42mm which strikes the balance between compatibility and stability.
- Structural upgrading, accurate adjustment, abolishing the limit position on the common hanger extender, increase the adjustment range, and easier to adjust in place. Also increase shift speed.
- Professional testing tools ensure high qualities and made of AL7075 aluminum which comes with M10 screw.
- Specification: Material:Alloy / Length:42mm / C to C diameter:25mm / Color:Black / Weight:approx.17g / For Shimano rear derailleur use.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Item Package Dimensions L x W x H | 5.87 x 5.08 x 0.63 inches |
| Package Weight | 0.02 Kilograms |
| Item Weight | 17 Grams |
| Brand Name | SwishTi |
| Material | Aluminum |
| Manufacturer | SwishTi |
| Part Number | SwishTi RD hanger |

## Images

![Road Mountain MTB Bicycle Bike Rear Derailleur Hanger w/M10 Bolt Extender for upgrading Shimano Larger Cassette use - Image 1](https://m.media-amazon.com/images/I/41FOU3E7Q2S.jpg)
![Road Mountain MTB Bicycle Bike Rear Derailleur Hanger w/M10 Bolt Extender for upgrading Shimano Larger Cassette use - Image 2](https://m.media-amazon.com/images/I/41Ivn6Hm4jS.jpg)
![Road Mountain MTB Bicycle Bike Rear Derailleur Hanger w/M10 Bolt Extender for upgrading Shimano Larger Cassette use - Image 3](https://m.media-amazon.com/images/I/41d+Cuxuy6S.jpg)
![Road Mountain MTB Bicycle Bike Rear Derailleur Hanger w/M10 Bolt Extender for upgrading Shimano Larger Cassette use - Image 4](https://m.media-amazon.com/images/I/41Zbj4P9iTS.jpg)
![Road Mountain MTB Bicycle Bike Rear Derailleur Hanger w/M10 Bolt Extender for upgrading Shimano Larger Cassette use - Image 5](https://m.media-amazon.com/images/I/51MWxK6rLzS.jpg)

## Customer Reviews

### ⭐ 1.0 out of 5 stars







  
  
    Defective by design
  

*by A***S on Reviewed in the United States on July 26, 2022*

This is just not designed correctly. There should be an inset where the derailleur bolts in so the lits of its movement are the same relative to the gears. This pushes the derailleur out more. ALSO the spot that contacts the b-limit screw is backwards. ALSO ALSO, the extrusions that hug the derailleur hanger are too closely spaced. Just complete trash, which is where mine ended up.

### ⭐ 1.0 out of 5 stars







  
  
    Waste of money and time
  

*by B***S on Reviewed in the United States on April 20, 2022*

With my derailleur adjusted all the way in it still won’t work because of how much offset this adds. With so many properly aligned extensions on the market this junk part should not even be posted for sale as it is better off in the trash than on any bike.

### ⭐⭐ 2.0 out of 5 stars







  
  
    Works poorely.
  

*by C***Y on Reviewed in the United States on March 5, 2022*

So it attaches to the bike, the derrailuere attaches to it.  From that point onward it less usefull.  I could not get the derrailuere to work with a 30t cassette, which is not all that big of a cassette.  It worked fine through all the gears except the biggest one, which it drove the pulleys into the largest cog on the cassette rather than climb up on top of.I switched it for one of the cheapy aluminum road ones from china and all the sudden the whole system is flawless. Sad that this swishti one really failed so spectacularly to do its job.

## Frequently Bought Together

- SwishTi Road Mountain MTB Bicycle Bike Rear Derailleur Hanger w/M10 Bolt Extender for upgrading Shimano 34-52t Larger Cassette use
- Shimano Universal Standard Brake Cable Set, for MTB or Road Bikes

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**Shop now:** [https://www.desertcart.hr/products/346929734-road-mountain-mtb-bicycle-bike-rear-derailleur-hanger-w-m10](https://www.desertcart.hr/products/346929734-road-mountain-mtb-bicycle-bike-rear-derailleur-hanger-w-m10)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-03-17*