---
product_id: 616630931
title: "Silver 21.1mm (0.83\") Aluminum Threadless QUILL STEM Adapter Bike Bicycle"
brand: "motorcycle"
price: "€ 61.42"
currency: EUR
in_stock: true
category: "Motorcycle"
url: https://www.desertcart.it/products/616630931-silver-21-1mm-0-83-aluminum-threadless-quill-stem-adapter
store_origin: IT
region: Italy
---

# Threadless quill design for sleek upgrade 21.1mm steerer fit precision Lightweight aluminum alloy build Silver 21.1mm (0.83") Aluminum Threadless QUILL STEM Adapter Bike Bicycle

**Brand:** motorcycle
**Price:** € 61.42
**Availability:** ✅ In Stock

## Summary

> ⚡ Upgrade your ride with precision and style!

## Quick Answers

- **What is this?** Silver 21.1mm (0.83") Aluminum Threadless QUILL STEM Adapter Bike Bicycle by motorcycle
- **How much does it cost?** € 61.42 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/616630931-silver-21-1mm-0-83-aluminum-threadless-quill-stem-adapter)

## Best For

- motorcycle enthusiasts

## Why This Product

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

## Key Features

- • **Threadless Upgrade:** Transforms traditional threaded forks to modern threadless stems, future-proofing your bike setup.
- • **Sleek Silver Finish:** Minimalist silver design that complements any bike aesthetic while signaling quality and style.
- • **Precision Engineering:** Made in Taiwan with exacting standards ensuring a secure, wobble-free fit every ride.
- • **Premium Aluminum Alloy:** Crafted from durable, lightweight aluminum for enhanced ride performance and corrosion resistance.
- • **Seamless Compatibility:** Fits 21.1mm (0.83") steerer tubes with a smooth 28.6mm clamp interface for effortless integration.

## Overview

The Silver 21.1mm Aluminum Threadless Quill Stem Adapter is a high-quality, lightweight solution designed to convert traditional threaded bike forks to modern threadless stems. Made from durable aluminum alloy in Taiwan, it ensures a precise fit for 21.1mm steerer tubes with a 28.6mm clamp diameter, delivering both performance and sleek aesthetics for cycling enthusiasts.

## Description

Silver 21.1mm (0.83") Aluminum Threadless Quill Stem Adapter. Premium Quality, Made in Taiwan

## Features

- Aluminum Threadless Quill Stem Adapter (For Ahead)
- Fork Steerer Inside Diameter: 21.1mm/ 0.83"
- Ahead Diameter (Stem Clamp): 28.6mm (1 1/8")
- 28.6mm (Upper part) tap down to 21.1mm (Lower part)
- Aluminum Alloy

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08P1JPP4Y |
| Best Sellers Rank | 140,936 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) 256 in Mounts & Adapters |
| Brand | Motorcycle |
| Date First Available | 6 Mar. 2024 |
| Frame material | Aluminum |
| Manufacturer | Motorcycle |
| Manufacturer reference | Motorcycle |
| Material type | Aluminum |
| Package Dimensions | 17.7 x 11.2 x 2.79 cm; 200 g |

## Images

![Silver 21.1mm (0.83") Aluminum Threadless QUILL STEM Adapter Bike Bicycle - Image 1](https://m.media-amazon.com/images/I/71REkoqnJ2L.jpg)
![Silver 21.1mm (0.83") Aluminum Threadless QUILL STEM Adapter Bike Bicycle - Image 2](https://m.media-amazon.com/images/I/61kN53jHGnL.jpg)

## Frequently Bought Together

- Silver 21.1mm (0.83") Aluminum Threadless QUILL STEM Adapter Bike Bicycle
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**Shop now:** [https://www.desertcart.it/products/616630931-silver-21-1mm-0-83-aluminum-threadless-quill-stem-adapter](https://www.desertcart.it/products/616630931-silver-21-1mm-0-83-aluminum-threadless-quill-stem-adapter)

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*Product available on Desertcart Italy*
*Store origin: IT*
*Last updated: 2026-05-13*