---
product_id: 373314068
title: "Thinvik Bike Seat Post Shim 22.2mm, 25.4mm, 27.2mm to 25.4mm,27.2mm,28.6mm,30.4mm,30.8mm,31.6mm Bicycle Seatpost Tube Adapter 60MM"
brand: "thinvik"
price: "₨6608"
currency: LKR
in_stock: true
url: https://www.desertcart.lk/products/373314068-thinvik-bike-seat-post-shim-22-2mm-25-4mm-27
store_origin: LK
region: Sri Lanka
---

# Durable Material Multiple Sizes Easy Installation Thinvik Bike Seat Post Shim 22.2mm, 25.4mm, 27.2mm to 25.4mm,27.2mm,28.6mm,30.4mm,30.8mm,31.6mm Bicycle Seatpost Tube Adapter 60MM

**Brand:** thinvik
**Price:** ₨6608
**Availability:** ✅ In Stock

## Summary

> 🚲 Elevate Your Cycling Experience with Seamless Adjustability!

## Quick Answers

- **What is this?** Thinvik Bike Seat Post Shim 22.2mm, 25.4mm, 27.2mm to 25.4mm,27.2mm,28.6mm,30.4mm,30.8mm,31.6mm Bicycle Seatpost Tube Adapter 60MM by thinvik
- **How much does it cost?** ₨6608 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/373314068-thinvik-bike-seat-post-shim-22-2mm-25-4mm-27)

## Best For

- thinvik enthusiasts

## Why This Product

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

## Key Features

- • **Built to Last:** Anti-rust and durable design ensures longevity on every adventure.
- • **Hassle-Free Setup:** Simple 4-step installation process—get riding in no time!
- • **Transform Your Ride:** Easily adapt your bike's seat post diameter for a perfect fit.
- • **Lightweight Champion:** Crafted from high-quality 6061 aluminum alloy for minimal weight.
- • **Universal Compatibility:** Fits most bicycles, including MTB and road bikes.

## Overview

The Thinvik Bike Seat Post Shim is a versatile adapter designed to fit various seat post diameters, allowing for easy adjustments without the need for a new seat post. Made from lightweight and durable 6061 aluminum alloy, this shim is perfect for mountain and road bikes alike. Its straightforward installation process makes it a must-have for any cycling enthusiast looking to enhance their ride.

## Description

How to select the Correct Size  For instance 25.4mm(ID) is your original seatpost diameter 27.2mm(OD) is your Seat tube mouth diameter so you select 25.4mm to 27.2mm seatpost shim That you will make the 25.4mm seat post suitable for the 27.2mm bicycle seat tube mouth

## Features

- Compatible with most bicycles, Suitable for MTB bike, road bike, etc. You can easily adjust the diameter of the bicycle seat post and no more wasting money on repurchasing a seat post. （Please select an appropriate one referring to figure 2）
- Superb Material. Made of high quality 6061 aluminum alloy, CNC machining CD texture surface, light weight and portable, anti-rust and durable.
- Easy to Use. 1-Open the clamp. 2-Put the seat post and shim adapter in. 3-Adjust the post height. 4-Lock the clamp.Apply this bike seat post shim, 22.2 ID Kids Bike ,BMX seat post can be switched to 25.4 bike seat post（22.2 to 25.4 for example).
- Size Description. Different Seat Post Shims and multiple sizes for your reference.
- Warming Tips. First: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. Second:Because of hollow design, it can be squeezed and might be out of shape in transit, please kindly contact us for a replacement.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Item Package Dimensions L x W x H | 4.72 x 3.7 x 1.57 inches |
| Package Weight | 0.01 Kilograms |
| Brand Name | Thinvik |
| Material | Aluminum |
| Manufacturer | Thinvik |
| Part Number | SeatpostShim-22.2 to 25.4mm |
| Size | SeatpostShim-22.2 to 25.4mm |

## Product Details

- **Material:** Aluminum
- **Brand:** Thinvik
- **Bike Type:** Mountain Bike
- **Manufacturer:** Thinvik

## Images

![Thinvik Bike Seat Post Shim 22.2mm, 25.4mm, 27.2mm to 25.4mm,27.2mm,28.6mm,30.4mm,30.8mm,31.6mm Bicycle Seatpost Tube Adapter 60MM - Image 1](https://m.media-amazon.com/images/I/51JEhY0ZkeL.jpg)
![Thinvik Bike Seat Post Shim 22.2mm, 25.4mm, 27.2mm to 25.4mm,27.2mm,28.6mm,30.4mm,30.8mm,31.6mm Bicycle Seatpost Tube Adapter 60MM - Image 2](https://m.media-amazon.com/images/I/615q0wVvhML.jpg)
![Thinvik Bike Seat Post Shim 22.2mm, 25.4mm, 27.2mm to 25.4mm,27.2mm,28.6mm,30.4mm,30.8mm,31.6mm Bicycle Seatpost Tube Adapter 60MM - Image 3](https://m.media-amazon.com/images/I/6160GhA9CgL.jpg)
![Thinvik Bike Seat Post Shim 22.2mm, 25.4mm, 27.2mm to 25.4mm,27.2mm,28.6mm,30.4mm,30.8mm,31.6mm Bicycle Seatpost Tube Adapter 60MM - Image 4](https://m.media-amazon.com/images/I/61Du17UuDQL.jpg)
![Thinvik Bike Seat Post Shim 22.2mm, 25.4mm, 27.2mm to 25.4mm,27.2mm,28.6mm,30.4mm,30.8mm,31.6mm Bicycle Seatpost Tube Adapter 60MM - Image 5](https://m.media-amazon.com/images/I/61OoinGamzL.jpg)

## Available Options

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

## Frequently Bought Together

- Thinvik Bike Seat Post Shim 22.2mm, 25.4mm, 27.2mm to 25.4mm,27.2mm,28.6mm,30.4mm,30.8mm,31.6mm Bicycle Seatpost Tube Adapter 60MM
- SR Suntour SP12 NCX bike Suspension Seatpost with Cover (27.2mm x 350mm)

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**Shop now:** [https://www.desertcart.lk/products/373314068-thinvik-bike-seat-post-shim-22-2mm-25-4mm-27](https://www.desertcart.lk/products/373314068-thinvik-bike-seat-post-shim-22-2mm-25-4mm-27)

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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-02-05*