---
product_id: 379516358
title: "TRIWONDER Stem Riser Adapter Aluminum Bike Fork Stem Quill Riser Extender Extension Road Mountain Bicycle Stem Head Up Raiser Handlebar Adapter"
brand: "triwonder"
price: "¥3144"
currency: JPY
in_stock: true
category: "Triwonder"
url: https://www.desertcart.jp/products/379516358-triwonder-stem-riser-adapter-aluminum-bike-fork-stem-quill-riser
store_origin: JP
region: Japan
---

# 150mm length - optimal handlebar height boost Threaded to threadless conversion - seamless upgrade 6061 Aluminum Alloy - durable & lightweight TRIWONDER Stem Riser Adapter Aluminum Bike Fork Stem Quill Riser Extender Extension Road Mountain Bicycle Stem Head Up Raiser Handlebar Adapter

**Brand:** triwonder
**Price:** ¥3144
**Availability:** ✅ In Stock

## Summary

> 🚴‍♂️ Rise Above the Rest — Upgrade Your Ride, Upgrade Your Game!

## Quick Answers

- **What is this?** TRIWONDER Stem Riser Adapter Aluminum Bike Fork Stem Quill Riser Extender Extension Road Mountain Bicycle Stem Head Up Raiser Handlebar Adapter by triwonder
- **How much does it cost?** ¥3144 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/379516358-triwonder-stem-riser-adapter-aluminum-bike-fork-stem-quill-riser)

## Best For

- triwonder enthusiasts

## Why This Product

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

## Key Features

- • **Elevate Your Ride:** Raise your handlebar height effortlessly for superior comfort and control.
- • **Premium Aluminum Build:** Crafted from polished anodized 6061 aluminum alloy for strength without the weight.
- • **Universal Compatibility:** Fits most bikes with 1-1/8'' (28.6mm) threadless steerer tubes—road or mountain.
- • **Quick & Easy Installation:** Convert your quill stem to a modern threadless setup in minutes, no hassle.
- • **Sleek, Matte Black Finish:** Adds a professional, stylish touch to your bike’s cockpit.

## Overview

The TRIWONDER Stem Riser Adapter is a 150mm aluminum alloy extender designed to raise your bike’s handlebar height by converting a threaded quill stem to a threadless setup. Compatible with most 1-1/8'' (28.6mm) steerer tubes, it offers a durable, lightweight, and stylish solution for enhanced riding comfort and control.

## Description

desertcart.com : TRIWONDER Stem Riser Adapter Aluminum Alloy Bike Fork Stem Quill Riser Extender Extension Road Mountain Bicycle Stem Head (Black, 22.2mm x 150mm) : Sports & Outdoors

## Features

- ✅ Material - The quill stem converter is made of 6061 Aluminium Alloy With polished anodized finish
- ✅ Size - Base Diameter(Upper diameter): 1 1/8” (28.6mm); Steerer Tube Diameter: 22.2mm/25.4mm; Total Length: 150mm
- ✅ Raises the height of your handlebars by increasing the height of your bike stem
- ✅ Easy installation, converts a threaded quill stem setup to threadless
- ✅ Perfect for Most Bikes: The quill riser extender is suitable for most bike with 1-1/8''(28.6mm) threadless steerer

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B094CKZJGZ |
| Best Sellers Rank | #24,499 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #105 in Bike Handlebars, Headsets & Stems |
| Brand Name | TRIWONDER |
| Color | Black |
| Customer Reviews | 4.6 4.6 out of 5 stars (918) |
| Date First Available | May 7, 2021 |
| Included Components | Stem |
| Item Package Dimensions L x W x H | 6.5 x 2.87 x 1.18 inches |
| Manufacturer | TRIWONDER |
| Material | Aluminum |
| Number of Items | 1 |
| Package Weight | 0.17 Kilograms |
| Part Number | 0919 |
| Size | 22,2 x 150 mm |
| Suggested Users | unisex_adult |

## Images

![TRIWONDER Stem Riser Adapter Aluminum Bike Fork Stem Quill Riser Extender Extension Road Mountain Bicycle Stem Head Up Raiser Handlebar Adapter - Image 1](https://m.media-amazon.com/images/I/51L3e0wu4tL.jpg)
![TRIWONDER Stem Riser Adapter Aluminum Bike Fork Stem Quill Riser Extender Extension Road Mountain Bicycle Stem Head Up Raiser Handlebar Adapter - Image 2](https://m.media-amazon.com/images/I/616dK6dVWBL.jpg)
![TRIWONDER Stem Riser Adapter Aluminum Bike Fork Stem Quill Riser Extender Extension Road Mountain Bicycle Stem Head Up Raiser Handlebar Adapter - Image 3](https://m.media-amazon.com/images/I/71Jzumo-0WL.jpg)
![TRIWONDER Stem Riser Adapter Aluminum Bike Fork Stem Quill Riser Extender Extension Road Mountain Bicycle Stem Head Up Raiser Handlebar Adapter - Image 4](https://m.media-amazon.com/images/I/61cS-TYSg4L.jpg)
![TRIWONDER Stem Riser Adapter Aluminum Bike Fork Stem Quill Riser Extender Extension Road Mountain Bicycle Stem Head Up Raiser Handlebar Adapter - Image 5](https://m.media-amazon.com/images/I/81fWEd7-ZWL.jpg)

## Available Options

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

## Frequently Bought Together

- TRIWONDER Stem Riser Adapter Aluminum Bike Fork Stem Quill Riser Extender Extension Road Mountain Bicycle Stem Head Up Raiser Handlebar Adapter
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**Shop now:** [https://www.desertcart.jp/products/379516358-triwonder-stem-riser-adapter-aluminum-bike-fork-stem-quill-riser](https://www.desertcart.jp/products/379516358-triwonder-stem-riser-adapter-aluminum-bike-fork-stem-quill-riser)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-07-17*