---
product_id: 300579458
title: "Aluminum Alloy Bicycle Seatpost 100mm"
brand: "ganopper"
price: "¥3552"
currency: JPY
in_stock: true
reviews_count: 13
url: https://www.desertcart.jp/products/300579458-aluminum-alloy-bicycle-seatpost-100mm
store_origin: JP
region: Japan
---

# 6061 aluminum alloy 100mm length Fits multiple diameters Aluminum Alloy Bicycle Seatpost 100mm

**Brand:** ganopper
**Price:** ¥3552
**Availability:** ✅ In Stock

## Summary

> 🚲 Elevate Your Cycling Experience!

## Quick Answers

- **What is this?** Aluminum Alloy Bicycle Seatpost 100mm by ganopper
- **How much does it cost?** ¥3552 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/300579458-aluminum-alloy-bicycle-seatpost-100mm)

## Best For

- ganopper enthusiasts

## Why This Product

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

## Key Features

- • **Durable Design:** Crafted from high-quality 6061 aluminum alloy, ensuring longevity and resistance to rust.
- • **Transform Your Ride:** Easily switch between seat post sizes (22.2 to 25.4 mm) for ultimate versatility.
- • **Precision Engineering:** CNC machined for a perfect fit, enhancing your bike's performance.
- • **Hassle-Free Adjustment:** No need to buy a new seat post; simply adjust the diameter to suit your needs.
- • **Universal Compatibility:** Compatible with a wide range of bikes including MTB, BMX, and road bikes.

## Overview

The 100mm Long Seatpot Shim is a versatile and durable bicycle seat post tube adapter designed to fit various diameters (22.2 to 36 mm). Made from high-quality 6061 aluminum alloy with a CNC machined surface, this shim allows for easy adjustments without the need for a new seat post, making it perfect for MTB, BMX, and road bike enthusiasts.

## Description

Aluminum Alloy Bicycle Seatpost 100mm

## Features

- Size: 22.2 to 25.4 seatpost shims. Length: 100mm.
- Feature:(1):Apply this bike post shim, 22.2 ID Kids Bike ,BMX Seat Post can be Switched as 25.4 bike seat post,(2):You can also use this reducer as bike handlebar shim
- Material: bicycle Seatpost Shim is made of high quality 6061 aluminum alloy, CNC machining CD texture surface ,anti-rust and durable
- Tips: Please check your bike frame seat tube outside diameter. Measure the inside diameter of your old clamp. Or measure the outside diameter of your seat tube (on your bike frame). Then make a right choice. - - -Because of hollow design，In the process of transportation are squeezed may be out of shape，Please kindly exchange one
- Application: Bicycle Seatpost reducer matches well with most bicycles, such as MTB ,BMX ,mountain bike, road bike,and more, you can easily adjust the diameter of the bicycle seat post, eliminating the trouble of repurchasing the bike seatpost.

## Images

![Aluminum Alloy Bicycle Seatpost 100mm - Image 1](https://m.media-amazon.com/images/I/71xxR7CseML.jpg)
![Aluminum Alloy Bicycle Seatpost 100mm - Image 2](https://m.media-amazon.com/images/I/71fEWc9tf4L.jpg)
![Aluminum Alloy Bicycle Seatpost 100mm - Image 3](https://m.media-amazon.com/images/I/71Zu0mlYmcL.jpg)
![Aluminum Alloy Bicycle Seatpost 100mm - Image 4](https://m.media-amazon.com/images/I/71bcin+2gEL.jpg)
![Aluminum Alloy Bicycle Seatpost 100mm - Image 5](https://m.media-amazon.com/images/I/71ml635UYzL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ 







  
  
    Perfect!
  

*by V***T on Reviewed in the United States on May 17, 2023*

I needed to fit a REDSHIFT ShockStop Suspension Seatpost onto my Eahora X7 folding electric bike and the Ganopper 27.2 to 33.9 worked perfectly!The suspension seat post works perfectly, but I couldn't have used it without this shim.Thank you!!

### ⭐⭐⭐⭐ 







  
  
    Needs modification with carbon posts
  

*by T***. on Reviewed in the United States on May 8, 2023*

Take a file and grind a chamfer on inside radius of top flange as shown in pics. For good measure a filed a chamfer with square file down the slor as well. When I first installed the collar I noticed small flakes from my post where the sharp edges were digging into my post as it flexed.

### ⭐⭐⭐⭐⭐ 







  
  
    Works Perfectly
  

*by C***S on Reviewed in the United States on April 3, 2023*

This adapter worked perfect for my bike. I wanted to put my cruiser suspension seat post on my new bike and this adapter works great with no issues.

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**Shop now:** [https://www.desertcart.jp/products/300579458-aluminum-alloy-bicycle-seatpost-100mm](https://www.desertcart.jp/products/300579458-aluminum-alloy-bicycle-seatpost-100mm)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-27*