---
product_id: 487435839
title: "JFOYH EXA Form 900i 30.9mm/31.6mm Dropper Seatpost 100mm/125mm/150mm Travel Remote Cable Control Dropper Post for Internal Routing Bike Frame(345mm/395mm/445mm Length)"
brand: "jfoyh"
price: "8713261₫"
currency: VND
in_stock: true
reviews_count: 5
url: https://www.desertcart.vn/products/487435839-jfoyh-exa-form-900i-30-9mm-31-6mm-dropper-seatpost
store_origin: VN
region: Vietnam
---

# 30.9mm/31.6mm diameter fit 345/395/445mm length options Remote cable control, 1.6m adjustable JFOYH EXA Form 900i 30.9mm/31.6mm Dropper Seatpost 100mm/125mm/150mm Travel Remote Cable Control Dropper Post for Internal Routing Bike Frame(345mm/395mm/445mm Length)

**Brand:** jfoyh
**Price:** 8713261₫
**Availability:** ✅ In Stock

## Summary

> 🚵‍♂️ Elevate your ride, dominate every trail with a flick of the lever!

## Quick Answers

- **What is this?** JFOYH EXA Form 900i 30.9mm/31.6mm Dropper Seatpost 100mm/125mm/150mm Travel Remote Cable Control Dropper Post for Internal Routing Bike Frame(345mm/395mm/445mm Length) by jfoyh
- **How much does it cost?** 8713261₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/487435839-jfoyh-exa-form-900i-30-9mm-31-6mm-dropper-seatpost)

## Best For

- jfoyh enthusiasts

## Why This Product

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

## Key Features

- • **Lightweight Yet Rugged:** Crafted from premium 7075 alloy, this dropper post balances durability with featherlight performance, keeping your bike agile.
- • **Tailored Travel Lengths:** Select from 100mm, 120mm, or 150mm dropper travel to customize your ride height and conquer any terrain with confidence.
- • **Sleek Internal Cable Routing:** Designed exclusively for internal routing frames, installation is clean, simple, and keeps your cockpit clutter-free.
- • **Precision Fit for Every Frame:** Choose between 30.9mm and 31.6mm diameters to perfectly match your bike’s seat tube for seamless integration.
- • **Effortless On-the-Fly Adjustment:** Hydraulic remote lever lets you change seat height mid-ride without stopping—stay in the flow and ahead of the pack.

## Overview

The JFOYH EXA Form 900i is a high-performance hydraulic dropper seatpost available in 30.9mm and 31.6mm diameters, with three length and travel options (345mm/100mm, 395mm/120mm, 445mm/150mm). Featuring a 1.6-meter remote cable control for seamless height adjustment on the go, it’s built from durable 7075 alloy for a lightweight yet robust design. Perfect for bikes with internal cable routing, it offers easy installation and precise fitment to enhance your mountain biking experience.

## Description

Remote Control Hydraulic Dropper Seatpost (internal routing)Parameter InformationDiameter: 30.9mm/31.6mmLength: 345mm/395mm/445mmStroke: 100mm/120mm/150mm

## Features

- 🚴‍♂️Installation Diameter: 30.9mm/31.6mm are all available. It is very important to choose according to the inner diameter of the seat tube of your bicycle frame.
- 🚴‍♂️Length*Stroke: 345mm*100mm/395mm*120mm/445mm*150mm.
- 🚴‍♂️Remote Control: No need to stop to adjust the height of your seat, you can control the height as you like by pressing the lever during cycling. 1.6 meters long control wire, which can be cut as needed.
- 🚴‍♂️Durable and Lightweight: Hydraulic dropper integrated inside 7075 alloy tube, 345mm-about 480g, 395mm-about 620g, 445mm-about 670g.
- 🚴‍♂️Internal Cable Routing and Simple Installation: only suitable for internal cable routing frame, the installation process is very simple, please refer to the video for details.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | JFOYH BIKE |
| UPC | 774144172137 |
| Bike Type | Multi-Use |
| Color | Diameter: 31.6mm |
| Size | Length x Travel: 445mm x 150mm |
| Material Type | Metal |
| Batteries Included? | No |
| Item model number | Diameter: 31.6mm |
| Product Dimensions | 3.16 x 3.16 x 44.5 cm; 871 g |
| ASIN | B09YH576CH |

## Product Details

- **Colour:** Diameter: 31.6mm
- **Item weight:** 0.87 Kilograms
- **Material:** Metal
- **Brand:** JFOYH
- **Product dimensions:** 32W x 445H millimeters

## Images

![JFOYH EXA Form 900i 30.9mm/31.6mm Dropper Seatpost 100mm/125mm/150mm Travel Remote Cable Control Dropper Post for Internal Routing Bike Frame(345mm/395mm/445mm Length) - Image 1](https://m.media-amazon.com/images/I/61D4iUwD08L.jpg)

## Available Options

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

## Questions & Answers

**Q: What type of lever is included in the package? 1X lever? 2X lever?**
A: It's coming with standard 1x lever.

**Q: Is it coming with cable in housing?**
A: Yes, it's coming with cable in housing, ahout 1500mm.

**Q: How to install this dropper post?**
A: The installation process is simple, we have also shot an installation tutorial for you, please watch our product related videos.

**Q: Is 900i dropper post only for internal routing frame?**
A: Yes, 900i only for internal routinbg frame.

**Q: How Much Rotational Play Is Normal?**
A: 1-3mm of rotation is normal. Without a bit of wiggle room between the stanchion and the mid cap bushing, the dirt and grime that makes its way into your dropper could do some serious damage.

## Customer Reviews

### ⭐⭐⭐⭐⭐ 







  
  
    Seat dropper works great
  

*by M***Y on Reviewed in the United States on 13 November 2023*

Easy install , seller communicated well

### ⭐⭐⭐⭐⭐ 







  
    Un peu complexe à ajuster
  
  

*by S***E on Reviewed in Canada on 18 July 2023*

De bonne qualité

### ⭐⭐⭐⭐⭐ 







  
  
    Good post
  

*by L***D on Reviewed in Canada on 26 June 2023*

I've been using this dropper post for about 2 wks now and it works very well. Makes a big difference on the trails.

## Frequently Bought Together

- EXA Form 900i 30.9mm/31.6mm Dropper Post with Remote Lever and Cable Kit MTB/Ebike Internal Routing Dropper Seatpost for Mountain Bike(100mm/125mm/150mm Travel)
- Andeshunk Mountain Bike Crankset Hollow Integrated Crank axle Modified Single disc Crank 32T 34 36T

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**Shop now:** [https://www.desertcart.vn/products/487435839-jfoyh-exa-form-900i-30-9mm-31-6mm-dropper-seatpost](https://www.desertcart.vn/products/487435839-jfoyh-exa-form-900i-30-9mm-31-6mm-dropper-seatpost)

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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-03-24*