---
product_id: 47338845
title: "Ultegra R8000 Rear Derailleur Medium Box"
brand: "shimano"
price: "754.38 DT"
currency: TND
in_stock: true
reviews_count: 8
category: "Shimano"
url: https://www.desertcart.tn/products/47338845-ultegra-r8000-rear-derailleur-medium-box
store_origin: TN
region: Tunisia
---

# Medium cage fits 11-34t cassette Alloy build for durability Compatible with Ultegra & Dura-Ace Ultegra R8000 Rear Derailleur Medium Box

**Brand:** shimano
**Price:** 754.38 DT
**Availability:** ✅ In Stock

## Summary

> ⚡ Shift like a pro, ride like you own the road!

## Quick Answers

- **What is this?** Ultegra R8000 Rear Derailleur Medium Box by shimano
- **How much does it cost?** 754.38 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/47338845-ultegra-r8000-rear-derailleur-medium-box)

## 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

- • **Sleek Cable Management:** Integrated cable fastener routes excess neatly, reducing snag risks and boosting reliability
- • **Precision Alloy Engineering:** Lightweight yet ultra-durable for pro-level performance
- • **Backwards Compatible Upgrade:** Direct swap from 6800 series with added road link for bigger cassettes—no extra parts needed
- • **Flawless Shifting Experience:** Enhanced indexing knob with lock ensures smooth, reliable gear changes every time
- • **Expanded Cassette Compatibility:** Seamlessly handles 11-30t to 11-34t gearing ranges for versatile rides

## Overview

The Shimano Ultegra R8000 Rear Derailleur Medium Box is a premium alloy component designed for road cyclists seeking precise, reliable shifting. Compatible with Shimano Ultegra R8000 and Dura-Ace R9100 groupsets, it supports cassette ranges from 11-30t up to 11-34t, making it ideal for versatile gearing setups. Featuring an improved indexing knob with a locking mechanism and integrated cable management, it offers effortless installation and flawless performance, making it the ultimate upgrade for riders wanting to elevate their drivetrain without compromise.

## Description

Shimano has used Shadow technology for years on its mountain bike rear derailleurs. It allows for a lower profile and places the derailleur further inboard, keeping them out of harm's way and allowing a better chain path off the top jockey wheel in relation to the cassette. Shimano's R9100 group is the first time we saw this technology carried over to the road side, and we're happy to see its inclusion on the Ultegra RD-R8000 rear derailleur. The RD-8000 is the crowning jewel on the new Ultegra group, and if you are building up or updating a bike, you really can't do wrong with this group. The additional range afforded by the longer cage opens up the Ultegra group to adventure bikes and brings the precision, durability, and value to the masses. Additionally, if you just want to add a wider range to your Dura-Ace steed, adding the long cage Ultegra derailleur and cassette is all you need to spin perfect circles up long mountain passes. The shifting is impeccable, the durability is immaculate and the performance gap to Dura-Ace is about a tire width's margin in a bunch sprint. The change to an aluminum cage and some other minor hardware details are all that separate the Ultegra R8000 version from the Dura-Ace 9100 unit. Two cage lengths are available with cassette ranges from 11-30t (short) and 11-34t (long). Given a few design tweaks, the R8000 rear derailleur works best when paired with R8000 or R9100 levers, and it's a perfect addition to a full Ultegra bike or those running Dura Ace who want to run a bigger cassette. Another advantage of the Shadow design is the more linear path of the derailleur when shifting, which allowed the engineers at Shimano to create a shifter with a shorter throw resulting in more precise and quicker shifts—even with the larger cassette ranges we're beginning ride on everything from tarmac to gravel. We are happy to see Shimano continuing with a barrel adjuster at the derailleur. Road shifters don't have adjusters at the levers lik...

Review: Excellent derailleur - perhaps the most worthwhile upgrade from 6800 - TL;DR: Excellent product, a real improvement over the previous version. I bought this to replace a 6800 RD that I snapped off of my bike. I used to have a road link to allow for bigger cassettes without any problems. This version has a "road link" included in it. Installation is a bit different than the previous versions: First, the shift cable fastener thingy feels much more sturdy and routes the excess shift cabling neatly behind the derailleur, so it doesn't stick out anymore. It has much less chance of catching something and fraying. Another change is the indexing knob - it has this tiny lock that you need to actuate in order to turn around. Indexing was a breeze - took literally five minutes and now shifting is flawless on an 11-32 cassette. I need to try it with my 11-40 but watching some youtube videos it can tackle it no problem. This is maybe the most worthwhile upgrade from 6800, is completely backwards compatible. This is the first time a Shimano road derailleur works flawlessly with up to 11-40.
Review: Great Product Highest Quality - You can not beat the quality in design and engineering with SHIMANO. Even their lower cost items are of exceptional quality. I upgraded from the SHIMANO Ultegra Short-Cage Rear Derailleur to the Mid-Cage. This allowed me to increase the size of my rear cassette from 11-28 to 11-34. I have even gone to a Shram 11-36 and love the performance.

## Features

- Material: alloy
- Capacity: [short] 35t, [long] 39t
- Cassette Range: [short] 11-30 t, [long] 11-34 t
- Gearing: double
- Compatibility: Shimano Ultegra R8000, Shimano Dura-Ace R9100

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B072MPXWL5 |
| Best Sellers Rank | #73,204 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #34 in Rear Bike Derailleurs |
| Brand | SHIMANO |
| Brand Name | SHIMANO |
| Case Material Type | Alloy |
| Color | Gray |
| Customer Reviews | 4.8 out of 5 stars 743 Reviews |
| Included Components | Rear Derailleur |
| Item Dimensions L x W x H | 9"L x 6"W x 3"H |
| Item Weight | 0.7 Pounds |
| Manufacturer | Shimano |
| Manufacturer Part Number | IRDR8000GS |
| Material | Multi |
| Material Type | Multi |
| Model Number | Shimano |
| Mount Type | Braze-On Mount |
| Mounting Type | Braze-On Mount |
| Number of Teeth | 30 |
| Product Dimensions | 9"L x 6"W x 3"H |
| UPC | 689228623163 |
| Unit Count | 1.0 Count |
| Warranty Description | Limited Warranty |

## Product Details

- **Brand:** SHIMANO
- **Color:** Gray
- **Item Weight:** 11.2 ounces
- **Material:** Multi
- **Mounting Type:** Braze-On Mount

## Images

![Ultegra R8000 Rear Derailleur Medium Box - Image 1](https://m.media-amazon.com/images/I/519j7FgjXGL.jpg)
![Ultegra R8000 Rear Derailleur Medium Box - Image 2](https://m.media-amazon.com/images/I/511M-Qd+eqL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent derailleur - perhaps the most worthwhile upgrade from 6800
*by N***F on September 11, 2017*

TL;DR: Excellent product, a real improvement over the previous version. I bought this to replace a 6800 RD that I snapped off of my bike. I used to have a road link to allow for bigger cassettes without any problems. This version has a "road link" included in it. Installation is a bit different than the previous versions: First, the shift cable fastener thingy feels much more sturdy and routes the excess shift cabling neatly behind the derailleur, so it doesn't stick out anymore. It has much less chance of catching something and fraying. Another change is the indexing knob - it has this tiny lock that you need to actuate in order to turn around. Indexing was a breeze - took literally five minutes and now shifting is flawless on an 11-32 cassette. I need to try it with my 11-40 but watching some youtube videos it can tackle it no problem. This is maybe the most worthwhile upgrade from 6800, is completely backwards compatible. This is the first time a Shimano road derailleur works flawlessly with up to 11-40.

### ⭐⭐⭐⭐⭐ Great Product Highest Quality
*by S***R on February 11, 2023*

You can not beat the quality in design and engineering with SHIMANO. Even their lower cost items are of exceptional quality. I upgraded from the SHIMANO Ultegra Short-Cage Rear Derailleur to the Mid-Cage. This allowed me to increase the size of my rear cassette from 11-28 to 11-34. I have even gone to a Shram 11-36 and love the performance.

### ⭐⭐⭐⭐⭐ Works great!
*by N***S on February 12, 2018*

Very easy bolt-on, slightly finicky initial alignment setup....but it worked GREAT with my 6800 shifters on a 42 mile hilly, windy ride, so there was LOTS of shifting. Didn't miss even one, and it passed the ultimate test, it crosschained without complaint on the 34, and was even quieter than my 32 tooth setup while doing it!! And of course, the bailout gear was welcome climbing into a stiff wind. Two thumbs up on this one! Hot tip: Have an extra shifer cable on hand BEFORE you install, just in case you bugger up the end of your original cable, or it should end up an inch too short. Don't ask how I know this.

## Frequently Bought Together

- SHIMANO Ultegra Rd-R8000 Rear Derailleur
- Shimano Ultegra/XT CN-HG701 11-Speed Chain W/Quick Liink
- SHIMANO Unisex 305751220 Ultegra Cassette R8000 11V 11 V, Silber, One Size EU

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-04-23*