---
product_id: 78828142
title: "Bike Seatpost Aluminum Alloy Adjustable Seat Post 400mm Length Diameter 25.4/27.2/28.6//30.9/31.6mm for Mountain Bike Road Bicycle"
brand: "upanbike"
price: "฿2069"
currency: THB
in_stock: true
url: https://www.desertcart.co.th/products/78828142-bike-seatpost-aluminum-alloy-adjustable-seat-post-400mm-length-diameter
store_origin: TH
region: Thailand
---

# 400mm length Lightweight alloy Adjustable clamp Bike Seatpost Aluminum Alloy Adjustable Seat Post 400mm Length Diameter 25.4/27.2/28.6//30.9/31.6mm for Mountain Bike Road Bicycle

**Brand:** upanbike
**Price:** ฿2069
**Availability:** ✅ In Stock

## Summary

> 🚴‍♂️ Elevate your cycling game with UPANBIKE's adjustable seatpost!

## Quick Answers

- **What is this?** Bike Seatpost Aluminum Alloy Adjustable Seat Post 400mm Length Diameter 25.4/27.2/28.6//30.9/31.6mm for Mountain Bike Road Bicycle by upanbike
- **How much does it cost?** ฿2069 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/78828142-bike-seatpost-aluminum-alloy-adjustable-seat-post-400mm-length-diameter)

## Best For

- upanbike enthusiasts

## Why This Product

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

## Key Features

- • **Universal Fit:** Compatible with various bike types, from mountain to road bikes.
- • **Durable Design:** Crafted from strong aluminum alloy for lasting performance.
- • **Elevate Your Ride:** Experience the perfect saddle height with an extra-long 400mm seatpost.
- • **Lightweight Performance:** Weighing only 0.36 kg, it won’t weigh you down on your adventures.
- • **Micro-Adjustable Comfort:** Easily fine-tune your saddle angle for optimal riding posture.

## Overview

The UPANBIKE Bike Seatpost is a versatile and durable aluminum alloy seatpost designed for mountain and road bikes. With a length of 400mm and a range of compatible diameters (25.4/27.2/28.6/30.9/31.6mm), it offers an adjustable clamp for precise saddle positioning, ensuring comfort for riders of all heights.

## Description

UPANBIKE Bike Seatpost Aluminum Alloy Adjustable Seat Post 400mm Length Diameter 25.4/27.2/28.6//30.9/31.6mm for Mountain Bike Road Bicycle

## Features

- To fit frame seatpost hole:27.2mm.
- Extra long:15.7"(400mm);Help to raise height of saddle,so that tall rider don't have to bent much forward.
- Material:Strong aluminum alloy,tube thickness:2.05~3.05mm,durable and light weight.
- Micro adjustable clamp:you can adjust the tilt angle of the saddle via the clamp to make the saddle horizontal.
- Replacement seatpost for most bike,such as:mountain bike,road bike,and other universal bikes.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | UPANTECH |
| UPC | 747880883896 |
| Item Package Dimensions L x W x H | 15.63 x 3.14 x 1.97 inches |
| Package Weight | 0.36 Kilograms |
| Item Dimensions  LxWxH | 1.07 x 1.07 x 15.75 inches |
| Brand Name | UPANBIKE |
| Part Number | 50-187-1-3 |
| Outer Material | aluminum-alloy |

## Product Details

- **Color:** 27.2mm*blue
- **Material:** Aluminum
- **Brand:** UPANBIKE
- **Bike Type:** Mountain Bike
- **Product Dimensions:** 1.07"W x 15.75"H

## Images

![Bike Seatpost Aluminum Alloy Adjustable Seat Post 400mm Length Diameter 25.4/27.2/28.6//30.9/31.6mm for Mountain Bike Road Bicycle - Image 1](https://m.media-amazon.com/images/I/51HJCjVDNVS.jpg)

## Available Options

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

## Frequently Bought Together

- UPANBIKE Bike Seatpost Aluminum Alloy Adjustable Seat Post 400mm Length Diameter 25.4/27.2/28.6//30.9/31.6mm for Mountain Bike Road Bicycle
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**Shop now:** [https://www.desertcart.co.th/products/78828142-bike-seatpost-aluminum-alloy-adjustable-seat-post-400mm-length-diameter](https://www.desertcart.co.th/products/78828142-bike-seatpost-aluminum-alloy-adjustable-seat-post-400mm-length-diameter)

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-02-23*