---
product_id: 507727833
title: "EXA Form 900i 30.9mm/31.6mm Remote Control Dropper Post with 1x Lever kit and Cable in Housing, 100mm/120mm Travel Dropper Seatpost"
brand: "coomeng"
price: "29978 kr"
currency: ISK
in_stock: true
reviews_count: 13
category: "Coo Meng"
url: https://www.desertcart.is/products/507727833-exa-form-900i-30-9mm-31-6mm-remote-control-dropper
store_origin: IS
region: Iceland
---

# 100mm/120mm smooth travel dropper 2 diameter options (30.9mm & 31.6mm) All-in-one kit with lever & cable included EXA Form 900i 30.9mm/31.6mm Remote Control Dropper Post with 1x Lever kit and Cable in Housing, 100mm/120mm Travel Dropper Seatpost

**Brand:** coomeng
**Price:** 29978 kr
**Availability:** ✅ In Stock

## Summary

> 🚵‍♂️ Elevate your ride with precision dropper control—because every inch counts!

## Quick Answers

- **What is this?** EXA Form 900i 30.9mm/31.6mm Remote Control Dropper Post with 1x Lever kit and Cable in Housing, 100mm/120mm Travel Dropper Seatpost by coomeng
- **How much does it cost?** 29978 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/507727833-exa-form-900i-30-9mm-31-6mm-remote-control-dropper)

## Best For

- coomeng enthusiasts

## Why This Product

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

## Key Features

- • **Plug & Play Setup:** Complete kit with 1500mm cable housing and  1x remote lever—no extra purchases needed.
- • **Trail-Ready Travel:** Available in 100mm or 120mm travel to dial your dropper height for any terrain.
- • **Ride with Confidence:** Backed by a lifetime warranty and industry-leading customer support.
- • **Smooth & Durable Performance:** Upgraded cartridge ensures silky rebound and long-lasting reliability.
- • **Precision Fit, Zero Guesswork:** Choose between 30.9mm or 31.6mm diameter for perfect frame compatibility.

## Overview

The EXA Form 900i is a premium remote control dropper seatpost designed for internal cable routing, available in two diameters (30.9mm and 31.6mm) and two travel lengths (100mm and 120mm). It comes as a complete kit including a 1500mm cable housing and a 1x remote lever, ensuring hassle-free installation. Featuring an updated durable cartridge for smooth rebound, this dropper post is built for reliable performance on any trail and is backed by a lifetime warranty and top-tier customer support.

## Description

desertcart.com : EXA Form 900i 30.9mm/31.6mm Remote Control Dropper Post with 1x Lever kit and Cable in Housing, 100mm/120mm Travel Dropper Seatpost-31.6mm X 345mm : Sports & Outdoors

Review: Simple dropper great for kids - Seat post works great for an 85 lbs child. The item shipped without a required set screw for the piece to attach the control cable to the seat post, but we were able to make do. Otherwise, works as advertised.
Review: Great so far, easy install - Great value for the low cost. Compared to my tranzx, the cable design for the trigger is better. It has a stopper built in the cable rather than having a screw that presses down to hold it. We will put it to the test on trails but so far basic testing and usage says this is a decent post. Update: few weeks after cold weather, sometimes it gets stuck, might be a defect. We were able to tap the seat to trigger it but that would not be helpful during rides. If it continues we will drop stars and return it.

## Features

- The EXA Form 900i is designed for internal cable routing.
- 2 diameters are available: 30.9mm or 31.6mm, it is very important to choose the correct diameter.
- All Component in One Set: Coming with 1500mm cable in housing, and 1X remote lever kit. You don't need to buy anything else.
- Updated cartridge is more durable with smoother rebound.
- Lifetime warranty and industry leading customer support.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0B9ZDGL72 |
| Best Sellers Rank | #83,653 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #40 in Bike Seat Posts |
| Brand Name | CooMeng |
| Customer Reviews | 4.1 4.1 out of 5 stars (79) |
| Date First Available | August 16, 2022 |
| Item Dimensions LxWxH | 1.24 x 1.24 x 13.58 inches |
| Item Package Dimensions L x W x H | 17.52 x 3.39 x 2.64 inches |
| Manufacturer | CooMeng |
| Model Name | Diameter: 31.6mm |
| Package Weight | 0.8 Kilograms |
| Part Number | EXA Form 900i 31.6mm*345mm |
| Size | Length 345mm X Travel 100mm |
| Suggested Users | unisex-adult |
| UPC | 602581930044 |
| Warranty Description | Life time warranty. |

## Product Details

- **Brand:** CooMeng
- **Color:** Diameter: 31.6mm
- **Item Weight:** 0.8 Kilograms
- **Material:** Aluminum
- **Product Dimensions:** 1.24"W x 13.58"H

## Images

![EXA Form 900i 30.9mm/31.6mm Remote Control Dropper Post with 1x Lever kit and Cable in Housing, 100mm/120mm Travel Dropper Seatpost - Image 1](https://m.media-amazon.com/images/I/51Kr7Gmgm2L.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Simple dropper great for kids
*by A***R on September 26, 2025*

Seat post works great for an 85 lbs child. The item shipped without a required set screw for the piece to attach the control cable to the seat post, but we were able to make do. Otherwise, works as advertised.

### ⭐⭐⭐⭐ Great so far, easy install
*by A***5 on November 21, 2022*

Great value for the low cost. Compared to my tranzx, the cable design for the trigger is better. It has a stopper built in the cable rather than having a screw that presses down to hold it. We will put it to the test on trails but so far basic testing and usage says this is a decent post. Update: few weeks after cold weather, sometimes it gets stuck, might be a defect. We were able to tap the seat to trigger it but that would not be helpful during rides. If it continues we will drop stars and return it.

### ⭐⭐⭐⭐⭐ One of the best when on a budget
*by J***I on November 20, 2025*

It will , have not installed yet, but very popular choice for bike i own.

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**Shop now:** [https://www.desertcart.is/products/507727833-exa-form-900i-30-9mm-31-6mm-remote-control-dropper](https://www.desertcart.is/products/507727833-exa-form-900i-30-9mm-31-6mm-remote-control-dropper)

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*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-02-28*