---
product_id: 64421668
title: "aucun Universal Bike SEATPOST Reducer 27.2 > 30.6MM Shim Extension Convert Tube Adapter Adaptor Cycle Vintage MTB Fixie SINGLESPEED Spacer Aluminium SEAT Post Saddle"
brand: "aucun"
price: "14258₫"
currency: VND
in_stock: false
reviews_count: 1
url: https://www.desertcart.vn/products/64421668-aucun-universal-bike-seatpost-reducer-27-2-30-6mm-shim
store_origin: VN
region: Vietnam
---

# 80mm length precision fit Durable lightweight aluminum 27.2mm to 30.6mm diameter adapter aucun Universal Bike SEATPOST Reducer 27.2 > 30.6MM Shim Extension Convert Tube Adapter Adaptor Cycle Vintage MTB Fixie SINGLESPEED Spacer Aluminium SEAT Post Saddle

**Brand:** aucun
**Price:** 14258₫
**Availability:** ❌ Out of Stock

## Summary

> 🚴‍♂️ Upgrade your ride, no compromises!

## Quick Answers

- **What is this?** aucun Universal Bike SEATPOST Reducer 27.2 > 30.6MM Shim Extension Convert Tube Adapter Adaptor Cycle Vintage MTB Fixie SINGLESPEED Spacer Aluminium SEAT Post Saddle by aucun
- **How much does it cost?** 14258₫ with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/64421668-aucun-universal-bike-seatpost-reducer-27-2-30-6mm-shim)

## Best For

- aucun enthusiasts

## Why This Product

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

## Key Features

- • **Easy Installation:** Plug-and-play design means no hassle, just smooth cycling ahead.
- • **Precision Engineering:** 80mm length ensures a secure, stable fit without compromising ride comfort.
- • **Premium Aluminum Build:** Lightweight yet robust material guarantees long-lasting performance and corrosion resistance.
- • **Seamless Compatibility:** Effortlessly convert your seatpost from 27.2mm to 30.6mm for ultimate bike customization.
- • **Vintage to Modern Ready:** Perfect for upgrading vintage MTB, fixie, or singlespeed bikes with modern components.

## Overview

The aucun Universal Bike Seatpost Reducer is an 80mm long aluminum adapter designed to convert seatposts from 27.2mm to 30.6mm diameter. Ideal for vintage MTB, fixie, and singlespeed bikes, it offers a lightweight, durable solution for seamless seatpost compatibility and enhanced bike customization.

## Description

Length: 80 mm Inner Diameter: 27.2 mm Outer Diameter: 30.6 mm Material: Aluminium

Review: Great product!!! - Works as needed!!!

## Features

- Length: 80 mm
- Inner Diameter: 27.2 mm
- Outer Diameter: 30.6 mm
- Material: Aluminium

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B079YWCXYH |
| Bike Type | City Bike |
| Brand | aucun |
| Brand Name | aucun |
| Customer Reviews | 5.0 out of 5 stars 1 Review |
| Item Dimensions W x H | 1.07"W x 3.15"H |
| Manufacturer | aucun |
| Manufacturer Part Number | B079YWCXYH |
| Material | Aluminum |
| Material Type | Aluminum |
| Product Dimensions | 1.07"W x 3.15"H |

## Product Details

- **Material:** Aluminum
- **Brand:** aucun
- **Product Dimensions:** 1.07"W x 3.15"H
- **Manufacturer:** aucun

## Images

![aucun Universal Bike SEATPOST Reducer 27.2 > 30.6MM Shim Extension Convert Tube Adapter Adaptor Cycle Vintage MTB Fixie SINGLESPEED Spacer Aluminium SEAT Post Saddle - Image 1](https://m.media-amazon.com/images/I/41XGpG89zcL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great product!!!
*by S***Z on July 12, 2018*

Works as needed!!!

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**Shop now:** [https://www.desertcart.vn/products/64421668-aucun-universal-bike-seatpost-reducer-27-2-30-6mm-shim](https://www.desertcart.vn/products/64421668-aucun-universal-bike-seatpost-reducer-27-2-30-6mm-shim)

---

*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-06-03*