---
product_id: 178013027
title: "31.8 Stem - Carbon Stem Bicycle Stem Carbon Fiber Handlebar Stem 31.8×90 mm Road Bike Stem MTB Stem Black Matte 6 Degrees Stems - 1 Pcs"
brand: "flyan"
price: "¥410"
currency: JPY
in_stock: false
reviews_count: 4
url: https://www.desertcart.jp/products/178013027-31-8-stem-carbon-stem-bicycle-stem-carbon-fiber-handlebar
store_origin: JP
region: Japan
---

# 90 mm Length 140g Weight 6° Angle 31.8 Stem - Carbon Stem Bicycle Stem Carbon Fiber Handlebar Stem 31.8×90 mm Road Bike Stem MTB Stem Black Matte 6 Degrees Stems - 1 Pcs

**Brand:** flyan
**Price:** ¥410
**Availability:** ❌ Out of Stock

## Summary

> 🚴‍♂️ Elevate Your Ride with Style and Strength!

## Quick Answers

- **What is this?** 31.8 Stem - Carbon Stem Bicycle Stem Carbon Fiber Handlebar Stem 31.8×90 mm Road Bike Stem MTB Stem Black Matte 6 Degrees Stems - 1 Pcs by flyan
- **How much does it cost?** ¥410 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/178013027-31-8-stem-carbon-stem-bicycle-stem-carbon-fiber-handlebar)

## Best For

- flyan enthusiasts

## Why This Product

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

## Key Features

- • **Sleek Aesthetic:** Matte finish and exquisite craftsmanship elevate your bike's style.
- • **Quality Assurance:** Backed by a satisfaction guarantee—your ride is our priority!
- • **Lightweight Durability:** Crafted from premium carbon fiber and aluminum alloy for unmatched strength and minimal weight.
- • **Effortless Installation:** Comes as a complete set for quick and easy setup—just connect and ride!
- • **Universal Compatibility:** Designed to fit most road, mountain, and track bikes effortlessly.

## Overview

The FLYAN 31.8 Carbon Stem is a high-performance bicycle stem designed for road and mountain bikes. Weighing only 140 grams, it features a 6-degree angle and a 90 mm length, ensuring optimal handling and control. Made from durable carbon fiber and aluminum alloy, this stem combines lightweight construction with exceptional rigidity. Its matte finish not only looks great but also provides a comfortable grip. Easy to install and compatible with a wide range of bikes, it’s the perfect upgrade for any cycling enthusiast.

## Description

About this product specification:Color: Matt blackItem weight: 140 ±10 g Style: High intensity stemItem size: 31.8*28.6*90 mmStereer tube diameter: 28.6 mm Handlebar center diameter: 31.8 mm Material: Carbon fiber + Aluminum AlloyPackages list:1* Bike stemAdd The Bike Stem to Your Cart, Have a Great Ride Experience.

## Features

- ➊ Material - Carbon Fiber + Aluminum Alloy ( the cap is high-quality Aluminum alloy ). Very durable and lightweight, excellent toughness, no deformation, corrosion resistance. While reducing weight, we always consider maintaining its rigidity .
- ➋ Angle: 6 Degree; Handlebar diameter 31.8 mm , front fork stem diameter 28.6 mm . Length: 90 mm (center distance of the two holes); Weight: 140 ±10 g .
- ➌ Easy to install - It's complete set , ready to be installed and used right away. Just connect up the original front fork stem, four bolt bar clamp holds bar securely in position. Please follow the specified tightening torque (4Nm),we recommend using a hexagon wrench to tighten the screw.
- ➍ Use - Matte finish, exquisite workmanship, nice touch feeling. Suitable for most road bike, mountain bikes, track bike, MTB,DH, etc.
- ➎ Quality Guarantee - We’re so confident about the quality of our products that，If any quality problem with this product , please contact us first, we will send you are placement in free or fully refund your order !

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Item Package Dimensions L x W x H | 6.5 x 5.28 x 1.85 inches |
| Package Weight | 0.14 Kilograms |
| Item Weight | 140 Grams |
| Brand Name | FLYAN |
| Color | Black |
| Material | Aluminum, Carbon Fiber |
| Manufacturer | FLYAN |
| Part Number | Flyus00F6 |

## Images

![31.8 Stem - Carbon Stem Bicycle Stem Carbon Fiber Handlebar Stem 31.8×90 mm Road Bike Stem MTB Stem Black Matte 6 Degrees Stems - 1 Pcs - Image 1](https://m.media-amazon.com/images/I/61hwh8xgHiL.jpg)
![31.8 Stem - Carbon Stem Bicycle Stem Carbon Fiber Handlebar Stem 31.8×90 mm Road Bike Stem MTB Stem Black Matte 6 Degrees Stems - 1 Pcs - Image 2](https://m.media-amazon.com/images/I/61kyW2cssnL.jpg)
![31.8 Stem - Carbon Stem Bicycle Stem Carbon Fiber Handlebar Stem 31.8×90 mm Road Bike Stem MTB Stem Black Matte 6 Degrees Stems - 1 Pcs - Image 3](https://m.media-amazon.com/images/I/61zw5FG2DcL.jpg)
![31.8 Stem - Carbon Stem Bicycle Stem Carbon Fiber Handlebar Stem 31.8×90 mm Road Bike Stem MTB Stem Black Matte 6 Degrees Stems - 1 Pcs - Image 4](https://m.media-amazon.com/images/I/61dPUSM+wBL.jpg)
![31.8 Stem - Carbon Stem Bicycle Stem Carbon Fiber Handlebar Stem 31.8×90 mm Road Bike Stem MTB Stem Black Matte 6 Degrees Stems - 1 Pcs - Image 5](https://m.media-amazon.com/images/I/61LsgjJ5W+L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Great quality carbon stem that looks amazing!
  

*by J***3 on Reviewed in the United States on September 16, 2022*

Very nicely made full carbon stem, light weight and stylish.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    A little heavy.
  

*by V***V on Reviewed in the United States on April 18, 2021*

It’s a good stem and it fits standard handle bars. I used this for my rxl carbon 31.8mm drop handlebars. It fit perfectly. However, the stem is heavier than my carbon handlebars. So I would say that the stem isn’t exactly light. But it works well. I would buy again if needed.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Well worth it!
  

*by M***T on Reviewed in the United States on March 10, 2021*

I added this to my bike when I was upgrading my handle bars and it was a great addition! Is light weight and sturdy and was a great addition to my bike!

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-14*