---
product_id: 502414060
title: "CYSKY Bike Seatpost 27.2 x 400mm with 4 Size Bike Seatpost Shim 28.6mm 30.4mm 30.9mm 31.6mm, Bicycle Seat Post for Mountain Bike Road Bike MTB BMX"
brand: "cysky"
price: "R$401"
currency: BRL
in_stock: true
reviews_count: 8
category: "Cysky"
url: https://www.desertcart.com.br/products/502414060-cysky-bike-seatpost-27-2-x-400mm-with-4-size
store_origin: BR
region: Brazil
---

# Lightweight 0.45 kg design Universal fit with 4 size shims High-strength aluminum alloy CYSKY Bike Seatpost 27.2 x 400mm with 4 Size Bike Seatpost Shim 28.6mm 30.4mm 30.9mm 31.6mm, Bicycle Seat Post for Mountain Bike Road Bike MTB BMX

**Brand:** cysky
**Price:** R$401
**Availability:** ✅ In Stock

## Summary

> 🚴‍♂️ Elevate your ride with precision, comfort, and style—because your bike deserves the best!

## Quick Answers

- **What is this?** CYSKY Bike Seatpost 27.2 x 400mm with 4 Size Bike Seatpost Shim 28.6mm 30.4mm 30.9mm 31.6mm, Bicycle Seat Post for Mountain Bike Road Bike MTB BMX by cysky
- **How much does it cost?** R$401 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/502414060-cysky-bike-seatpost-27-2-x-400mm-with-4-size)

## Best For

- cysky enthusiasts

## Why This Product

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

## Key Features

- • **All-Terrain Ready:** Perfectly suited for Mountain, Road, MTB, and BMX bikes—join the community of riders who demand versatility and performance.
- • **Effortless Installation:** Quick setup guaranteed with included hex wrench and detailed installation videos—get back on the road faster than ever.
- • **Ergonomic Comfort Boost:** Designed to optimize your riding posture, reducing back pain and enhancing endurance for those long, scenic rides.
- • **Durable Yet Featherlight:** Crafted from premium aluminum alloy, this seatpost offers unbeatable strength while keeping your bike agile with just 0.45 kg weight.
- • **Precision Fit for Every Ride:** Includes 4 versatile shims (28.6mm, 30.4mm, 30.9mm, 31.6mm) to perfectly match your bike frame size—never worry about compatibility again.

## Overview

The CYSKY Bike Seatpost 27.2 x 400mm is a lightweight, high-strength aluminum alloy seatpost designed for mountain, road, MTB, and BMX bikes. It includes four size shims (28.6mm, 30.4mm, 30.9mm, 31.6mm) to ensure a perfect fit across various bike frames. With easy installation aided by a hex wrench and instructional videos, it enhances riding comfort by promoting optimal posture and reducing back pain. Weighing only 0.45 kg, it combines durability with agility, backed by a 1-year warranty.

## Description

desertcart.com : CYSKY Bike Seatpost 27.2 x 400mm with 4 Size Bike Seatpost Shim 28.6mm 30.4mm 30.9mm 31.6mm, Bicycle Seat Post for Mountain Bike Road Bike MTB BMX : Sports & Outdoors

Review: What a deal!!!! - Man this is a great deal!! Greatest seatpost I ever had 400mm.. more than enough for my e scooter, the post has ridges on it for grip and it's the easiest time I had putting the seat on the fastest I've gotten the seat on no struggle and to top it off 4 adaptors ..better get it now B4 it's gone😀
Review: Little tight - Worked good was a little tight with the smallest shim and to loose with out shim. Had to use a rubber mallet

## Features

- Material: Bicycle SeatPost is made of high-strength aluminum alloy, anti-scratch and wear-resistant, light weight
- Package include: 1x seat post (27.2x400mm), 4x seat post shim (28.6mm+30.4mm+30.9mm+31.6mm spacers)
- Wide range of applications: We have added 4 size of seatpost spacers, respectively 27.2mm to 28.6mm, 27.2mm to 30.4mm, 27.2mm to 30.9mm, 27.2mm to 31.6mm, Make this seatpost suitable for more sizes bicycle, No longer have to worry about buying the wrong size and bring the trouble
- Easy to install: To help you install it quickly and easily, we provide installation videos on the product detail page. If you have any questions, please feel free to contact us
- The comfortable bike seatpost has a pain-relieving effect on the back area as it provides the best riding posture during cycling. Let you ride more easily in the process, have a better riding experience

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BMLDHJ2V |
| Best Sellers Rank | #187,593 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #128 in Bike Seat Posts |
| Bike Type | Mountain Bike |
| Brand | CYSKY |
| Brand Name | CYSKY |
| Color | Black |
| Customer Reviews | 4.3 out of 5 stars 99 Reviews |
| Included Components | 1x bike seatpost, 1x hexagonal wrench, 4x bike seatpost shim |
| Item Dimensions W x H | 1.07"W x 15.75"H |
| Item Height | 15.75 inches |
| Item Type Name | Bike Seatpost |
| Item Weight | 0.45 Kilograms |
| Manufacturer | CYSKY |
| Material | Aluminum |
| Material Type | Aluminum |
| Product Dimensions | 1.07"W x 15.75"H |
| Warranty Description | 1 Year |

## Product Details

- **Brand:** CYSKY
- **Color:** Black
- **Item Weight:** 0.45 Kilograms
- **Material:** Aluminum
- **Product Dimensions:** 1.07"W x 15.75"H

## Images

![CYSKY Bike Seatpost 27.2 x 400mm with 4 Size Bike Seatpost Shim 28.6mm 30.4mm 30.9mm 31.6mm, Bicycle Seat Post for Mountain Bike Road Bike MTB BMX - Image 1](https://m.media-amazon.com/images/I/41DZTW8CNiL.jpg)
![CYSKY Bike Seatpost 27.2 x 400mm with 4 Size Bike Seatpost Shim 28.6mm 30.4mm 30.9mm 31.6mm, Bicycle Seat Post for Mountain Bike Road Bike MTB BMX - Image 2](https://m.media-amazon.com/images/I/51KO-yJsAuL.jpg)
![CYSKY Bike Seatpost 27.2 x 400mm with 4 Size Bike Seatpost Shim 28.6mm 30.4mm 30.9mm 31.6mm, Bicycle Seat Post for Mountain Bike Road Bike MTB BMX - Image 3](https://m.media-amazon.com/images/I/51dXGi6Rc2L.jpg)
![CYSKY Bike Seatpost 27.2 x 400mm with 4 Size Bike Seatpost Shim 28.6mm 30.4mm 30.9mm 31.6mm, Bicycle Seat Post for Mountain Bike Road Bike MTB BMX - Image 4](https://m.media-amazon.com/images/I/51jje0VIoPL.jpg)
![CYSKY Bike Seatpost 27.2 x 400mm with 4 Size Bike Seatpost Shim 28.6mm 30.4mm 30.9mm 31.6mm, Bicycle Seat Post for Mountain Bike Road Bike MTB BMX - Image 5](https://m.media-amazon.com/images/I/51pauytZb3L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ What a deal!!!!
*by B***O on May 6, 2025*

Man this is a great deal!! Greatest seatpost I ever had 400mm.. more than enough for my e scooter, the post has ridges on it for grip and it's the easiest time I had putting the seat on the fastest I've gotten the seat on no struggle and to top it off 4 adaptors ..better get it now B4 it's gone😀

### ⭐⭐⭐⭐ Little tight
*by E***D on October 14, 2023*

Worked good was a little tight with the smallest shim and to loose with out shim. Had to use a rubber mallet

### ⭐⭐⭐⭐⭐ Easy to install on multiple bikes
*by P***N on July 20, 2025*

Working perfectly

## Frequently Bought Together

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**Shop now:** [https://www.desertcart.com.br/products/502414060-cysky-bike-seatpost-27-2-x-400mm-with-4-size](https://www.desertcart.com.br/products/502414060-cysky-bike-seatpost-27-2-x-400mm-with-4-size)

---

*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-01-28*