---
product_id: 487085970
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: "₨4912"
currency: SCR
in_stock: true
reviews_count: 5
category: "Jfoyh"
url: https://www.desertcart.sc/products/487085970-jfoyh-exa-form-900i-30-9mm-31-6mm-dropper-seatpost
store_origin: SC
region: Seychelles
---

# 3 size options for perfect fit Lightweight 7075 alloy, under 670g Hydraulic remote lever for on-the-fly height adjustment 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:** ₨4912
**Availability:** ✅ In Stock

## Summary

> 🚵‍♂️ Elevate your ride, drop the limits!

## 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?** ₨4912 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/products/487085970-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

- • **Seamless Height Control:** Hydraulic remote cable lets you adjust seat height mid-ride without stopping—stay in the flow.
- • **Featherweight Durability:** Crafted from premium 7075 alloy, balancing strength and lightness for peak performance.
- • **Ride Confidently, Every Trail:** Tested and trusted by riders tackling blue and black trails, delivering reliable dropper action on demand.
- • **Tailored Fit, Maximum Comfort:** Choose from 30.9mm or 31.6mm diameters and three lengths to match your bike frame perfectly.
- • **Clean Aesthetics, Simple Setup:** Designed exclusively for internal cable routing frames, ensuring a sleek look and hassle-free installation.

## Overview

The JFOYH EXA Form 900i is a precision-engineered hydraulic dropper seatpost available in 30.9mm and 31.6mm diameters with three length and travel options (100mm, 120mm, 150mm). Featuring a remote cable control for effortless height adjustment on the go, it’s built from lightweight 7075 alloy and designed for internal cable routing frames, combining durability, sleek integration, and performance for serious trail riders.

## Description

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

Review: Buen producto. - No está fácil la instalación, pero entendiéndole queda muy bien y funciona perfectamente. Muy recomendable!
Review: Great post for the budget minded. Highly recommend. - This dropper functions as described. Six month test has gone well as I ride mainly blue trails with the occasional black 2-3 times a week. Only thing to note is I have to slightly stand and relieve tension from post in order for it to drop easier, ie: slightly stand, engage thumb trigger, sit on post to drop. Great post for the budget minded. Highly recommend. Hope this helps. Happy shopping.

## 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 |
|---------------|-------|
| ASIN | B09YH2PD3K |
| Best Sellers Rank | #198,900 in Sporting Goods ( See Top 100 in Sporting Goods ) #314 in Bike Seat Posts |
| Bike Type | Multi-Use |
| Brand | JFOYH |
| Brand Name | JFOYH |
| Color | Diameter: 31.6mm |
| Colour | Diameter: 31.6mm |
| Customer Reviews | 4.1 out of 5 stars 249 Reviews |
| Item Dimensions W x H | 30W x 445H millimeters |
| Item Type Name | Internal Routing |
| Item Weight | 0.73 Kilograms |
| Item height | 17.5 inches |
| Item weight | 0.73 Kilograms |
| Manufacturer | JFOYH |
| Material | Metal |
| Material Type | Metal |
| Product dimensions | 30W x 445H millimeters |
| UPC | 774144172076 |

## Product Details

- **Brand:** JFOYH
- **Colour:** Diameter: 31.6mm
- **Item weight:** 0.73 Kilograms
- **Material:** Metal
- **Product dimensions:** 30W 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/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 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/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 4](https://m.media-amazon.com/images/I/61aiiMqvKKL.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/71o8VNeN2PL.jpg)

## 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

### ⭐⭐⭐⭐⭐ Buen producto.
*by A***R on 12 January 2026*

No está fácil la instalación, pero entendiéndole queda muy bien y funciona perfectamente. Muy recomendable!

### ⭐⭐⭐⭐⭐ Great post for the budget minded. Highly recommend.
*by B***3 on 29 March 2025*

This dropper functions as described. Six month test has gone well as I ride mainly blue trails with the occasional black 2-3 times a week. Only thing to note is I have to slightly stand and relieve tension from post in order for it to drop easier, ie: slightly stand, engage thumb trigger, sit on post to drop. Great post for the budget minded. Highly recommend. Hope this helps. Happy shopping.

### ⭐⭐⭐⭐⭐ Works for 26" bike for pre-teen, first use of day a bit tight
*by M***T on 15 May 2023*

I have a kid that's getting into Mountain Biking, and put it on a 26" XXS Specialized RockHopper. Installation went as well as could be expected. Two main issues: - On the XXS RockHopper, it has a front derailleur, so finding a good spot for the lever took a bit of trial - The seat hydraulics get stuck the first time of the day, so getting it to extend the first time took some trial. Basically, I put a skinny screwdriver through the lever so I could pull it with my right hand, held the shaft with left hand, and held the other end between my feet and tried pushing/pulling until it unlocked. The provided cable was plenty big enough (I cut off over a foot). The lever hardware seems pretty great, and I didn't feel like I was going to strip any screws or break anything. Adjusting the tightness of the cable went really well due to the two adjustment screws (plenty of tightening room). The kid isn't very strong in the thumbs yet, so the first ride of the day he has to use two hands to "unlock" the stuck piston. After that it is incredibly smooth going up and down, and his left thumb is able to push it in okay enough (it's still tough, but it'll get easier as muscles grow). Again, the seat post does seem to get 'stuck' after sitting there for a day, but then goes super smooth the rest of the day. I'm happy with the post and the installation. It seems like good quality for the price I paid. It definitely isn't as good as the one on my own bike (mine has no 'stuck' issue after prolonged periods of inactivity), but good enough for this starter bike or anyone on a budget that wants a post that will last. I'll update this if I ever hit issues.

## 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)
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**Shop now:** [https://www.desertcart.sc/products/487085970-jfoyh-exa-form-900i-30-9mm-31-6mm-dropper-seatpost](https://www.desertcart.sc/products/487085970-jfoyh-exa-form-900i-30-9mm-31-6mm-dropper-seatpost)

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*Product available on Desertcart Seychelles*
*Store origin: SC*
*Last updated: 2026-02-02*