---
product_id: 335795512
title: "GRX RD-RX400 GRX 10-Speed Rear derailleur, Shadow+, for Double, Black"
brand: "shimano"
price: "₨42479"
currency: LKR
in_stock: true
category: "Shimano"
url: https://www.desertcart.lk/products/335795512-grx-rd-rx400-grx-10-speed-rear-derailleur-shadow-double
store_origin: LK
region: Sri Lanka
---

# Optimized for uneven terrain 10-speed precision shifting Adjustable chain stabilizer GRX RD-RX400 GRX 10-Speed Rear derailleur, Shadow+, for Double, Black

**Brand:** shimano
**Price:** ₨42479
**Availability:** ✅ In Stock

## Summary

> ⚡ Shift like a pro, conquer every trail with Shimano GRX!

## Quick Answers

- **What is this?** GRX RD-RX400 GRX 10-Speed Rear derailleur, Shadow+, for Double, Black by shimano
- **How much does it cost?** ₨42479 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/335795512-grx-rd-rx400-grx-10-speed-rear-derailleur-shadow-double)

## 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

- • **Shadow+ Design:** Low-profile derailleur reduces chain slap and enhances durability on rugged rides.
- • **Versatile Double Mount:** Perfectly engineered for double chainrings, expanding your gear range with confidence.
- • **Seamless 10-Speed Shifting:** Experience ultra-smooth gear changes tailored for dynamic trail conditions.
- • **Adjustable Chain Stabilizer:** Keep your chain locked in place—no more dropped chains on bumpy terrain.
- • **Lightweight Aluminium Build:** Robust yet featherlight for effortless handling and long-lasting performance.

## Overview

The Shimano GRX RD-RX400 is a 10-speed rear derailleur designed specifically for gravel and adventure cycling. Featuring a Shadow+ low-profile design and an adjustable chain stabilizer, it ensures quiet, smooth, and reliable shifting on uneven terrain. Crafted with durable materials and optimized for double chainrings, this derailleur offers precise performance and enhanced chain retention, backed by a 2-year manufacturer warranty.

## Description

Shimano GRX RD-RX400 GRX 10-Speed Rear derailleur, Shadow+, for Double, Black

## Features

- Material: Other
- Quiet and smooth shifting system for uneven terrain
- Package dimensions: 9.8 L x 17.6 H x 12.6 W (Zm)
- Adjustable chain stabilizer prevents the chain from jumping out
- Smooth and reliable shifting in changing ground conditions

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07RVXQWKV |
| Best Sellers Rank | #412,048 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #404 in Rear Bike Derailleurs |
| Brand Name | SHIMANO |
| Case Material Type | Aluminium |
| Color | Black |
| Customer Reviews | 4.5 4.5 out of 5 stars (93) |
| Global Trade Identification Number | 04550170448899 |
| Included Components | Bike Parts |
| Item Dimensions L x W x H | 3.86"L x 4.96"W x 6.93"H |
| Item Type Name | Brakes & Shifters |
| Item Weight | 1 pounds |
| League Name | GRX |
| Manufacturer | Shimano GRX |
| Manufacturer Part Number | IRDRX400 |
| Material Type | other |
| Model Number | C8C075 |
| Mount Type | Braze-On Mount |
| Number of Items | 1 |
| Number of Teeth | 36 |
| Unit Count | 1 Count |
| Warranty Description | 2 Year Manufacturer |

## Product Details

- **Brand:** SHIMANO
- **Color:** Black
- **Item Weight:** 1 pounds
- **League:** GRX
- **Material:** other

## Images

![GRX RD-RX400 GRX 10-Speed Rear derailleur, Shadow+, for Double, Black - Image 1](https://m.media-amazon.com/images/I/518yQjzdrsS.jpg)

## Frequently Bought Together

- Shimano GRX RD-RX400 GRX 10-Speed Rear derailleur, Shadow+, for Double, Black
- Shimano HG50 10 Speed Mountain Bike Cassette 11-36T
- SHIMANO CN-HG95 10-speed HG-X chain - 116 links

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**Shop now:** [https://www.desertcart.lk/products/335795512-grx-rd-rx400-grx-10-speed-rear-derailleur-shadow-double](https://www.desertcart.lk/products/335795512-grx-rd-rx400-grx-10-speed-rear-derailleur-shadow-double)

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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-10-29*