---
product_id: 509159630
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: "¥56657"
currency: JPY
in_stock: true
url: https://www.desertcart.jp/products/509159630-jfoyh-exa-form-900i-30-9mm-31-6mm-dropper-seatpost
store_origin: JP
region: Japan
---

# Remote lever control for on-the-fly seat adjustment 3 size options for perfect fit Hydraulic 7075 alloy for durability & lightness 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:** ¥56657
**Availability:** ✅ In Stock

## Summary

> 🚵‍♂️ Elevate your ride, command your trail—drop in style with JFOYH EXA Form 900i!

## 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?** ¥56657 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/509159630-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

- • **Featherlight Strength:** Crafted from premium 7075 alloy, balancing ultra-lightweight design (480g-670g) with rock-solid durability.
- • **Seamless Height Control:** Adjust your saddle height mid-ride with a 1.6m remote cable—cut to your preference for ultimate customization.
- • **Maximized Travel Options:** Select from 100mm, 125mm, or 150mm travel to conquer any terrain with confidence and style.
- • **Tailored Fit, Every Ride:** Choose from 30.9mm or 31.6mm diameters and three lengths (345mm, 395mm, 445mm) to match your bike frame perfectly.
- • **Clean, Clutter-Free Setup:** Designed exclusively for internal cable routing frames, ensuring a sleek, professional look and easy installation.

## Overview

The JFOYH EXA Form 900i dropper seatpost offers professional-grade performance with multiple diameter and length options, a lightweight yet durable 7075 alloy build, and a hydraulic remote lever for seamless height adjustments. Designed for internal cable routing frames, it delivers a clean installation and customizable travel distances (100mm to 150mm), making it the ultimate upgrade for serious cyclists seeking precision and style.

## Description

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)

## 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 | 774144172045 772168460025 |
| Bike type | Multi-Use |
| Color | Diameter: 30.9mm |
| Size | Length x Travel: 445mm x 150mm |
| Material type | Metal |
| Batteries included? | No |
| Item model number | Diameter: 30.9mm |
| Product Dimensions | 3.1 x 3.1 x 44.5 cm; 812 g |
| ASIN | B09YH2J2T6 |

## Product Details

- **Colour:** Diameter: 30.9mm
- **Item weight:** 0.81 Kilograms
- **Material:** Metal
- **Brand:** JFOYH
- **Product dimensions:** 31W x 445H millimetres

## 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)
![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 2](https://m.media-amazon.com/images/I/61BDX2UGmUL.jpg)
![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 3](https://m.media-amazon.com/images/I/71o8VNeN2PL.jpg)
![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 4](https://m.media-amazon.com/images/I/519w3738ekL.jpg)
![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 5](https://m.media-amazon.com/images/I/71t4fv8JvsL.jpg)

## Available Options

This product comes in different **Size Name, 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.

## 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.jp/products/509159630-jfoyh-exa-form-900i-30-9mm-31-6mm-dropper-seatpost](https://www.desertcart.jp/products/509159630-jfoyh-exa-form-900i-30-9mm-31-6mm-dropper-seatpost)

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