--- product_id: 474150521 title: "EXA Form 900i 30.9mm/31.6mm Internal Routing Dropper Post with Lever and Cable Kit MTB/Ebike Internal Bike Seatpost 100/120/150mm Travel -345/395/445mm Length" price: "AR$430123" currency: ARS in_stock: true url: https://www.desertcart.com.ar/products/474150521-exa-form-900i-30-9mm-31-6mm-internal-routing-dropper store_origin: AR region: Argentina --- # 30.9mm & 31.6mm diameters 7075 aluminum alloy build Smooth remote lever adjust EXA Form 900i 30.9mm/31.6mm Internal Routing Dropper Post with Lever and Cable Kit MTB/Ebike Internal Bike Seatpost 100/120/150mm Travel -345/395/445mm Length **Price:** AR$430123 **Availability:** ✅ In Stock ## Summary > 🚵‍♂️ Elevate your ride with precision and style — drop it like a pro! ## Quick Answers - **What is this?** EXA Form 900i 30.9mm/31.6mm Internal Routing Dropper Post with Lever and Cable Kit MTB/Ebike Internal Bike Seatpost 100/120/150mm Travel -345/395/445mm Length - **How much does it cost?** AR$430123 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/474150521-exa-form-900i-30-9mm-31-6mm-internal-routing-dropper) ## Best For - Customers looking for quality international products ## Why This Product - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Precision Fit Options:** Choose between 30.9mm and 31.6mm diameters plus multiple lengths (345/395/445mm) and travel distances (100/120/150mm) for a perfect match. - • **Lightweight Durability:** Crafted from premium 7075 aluminum alloy, balancing featherlight weight with rock-solid reliability. - • **Seamless Internal Routing:** Designed exclusively for internal cable routing frames to keep your bike sleek and aerodynamic. - • **Effortless On-the-Fly Adjustment:** Remote lever lets you instantly fine-tune seat height mid-ride without missing a beat. - • **Pro-Level Performance at Starter Price:** Features like sealed cartridge and forged head parts deliver smooth, dependable operation usually reserved for high-end models. ## Overview The EXA Form 900i dropper post is a high-performance, internally routed bike seatpost available in 30.9mm and 31.6mm diameters. Built from durable 7075 aluminum alloy, it offers multiple length and travel options (100-150mm) to fit various MTB and e-bike frames. Featuring a smooth remote lever for quick seat height adjustments, it combines lightweight design with professional-grade components, making it ideal for riders seeking reliable, on-the-fly adaptability and a clean, integrated look. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09YH2PD3K | | Best Sellers Rank | #30,687 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #12 in Bike Seat Posts | | Brand Name | JFOYH | | Color | Black | | Customer Reviews | 4.2 4.2 out of 5 stars (229) | | Included Components | Dropper Post Body, Lever Kit | | Item Dimensions W x H | 1.2"W x 17.5"H | | Item Weight | 0.73 Kilograms | | Manufacturer | JFOYH BIKE | | Manufacturer Part Number | BIKE DROPPER SEATPOST | | Material Type | Aluminum | | Model Number | Diameter: 31.6mm | | UPC | 774144172076 | | Warranty Description | 12-month Limited Wrranty | ## Product Details - **Brand:** JFOYH - **Color:** Black - **Item Weight:** 0.73 Kilograms - **Material:** Aluminum - **Product Dimensions:** 1.2"W x 17.5"H ## Images ![EXA Form 900i 30.9mm/31.6mm Internal Routing Dropper Post with Lever and Cable Kit MTB/Ebike Internal Bike Seatpost 100/120/150mm Travel -345/395/445mm Length - Image 1](https://m.media-amazon.com/images/I/61D4iUwD08L.jpg) ![EXA Form 900i 30.9mm/31.6mm Internal Routing Dropper Post with Lever and Cable Kit MTB/Ebike Internal Bike Seatpost 100/120/150mm Travel -345/395/445mm Length - Image 2](https://m.media-amazon.com/images/I/61BDX2UGmUL.jpg) ![EXA Form 900i 30.9mm/31.6mm Internal Routing Dropper Post with Lever and Cable Kit MTB/Ebike Internal Bike Seatpost 100/120/150mm Travel -345/395/445mm Length - Image 3](https://m.media-amazon.com/images/I/71o8VNeN2PL.jpg) ![EXA Form 900i 30.9mm/31.6mm Internal Routing Dropper Post with Lever and Cable Kit MTB/Ebike Internal Bike Seatpost 100/120/150mm Travel -345/395/445mm Length - Image 4](https://m.media-amazon.com/images/I/519w3738ekL.jpg) ![EXA Form 900i 30.9mm/31.6mm Internal Routing Dropper Post with Lever and Cable Kit MTB/Ebike Internal Bike Seatpost 100/120/150mm Travel -345/395/445mm Length - Image 5](https://m.media-amazon.com/images/I/71t4fv8JvsL.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. ## 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) - JKSPORTS ShimanoOEM BR MT200 Hydraulic Disc Brake Set Front 800mm and Rear 1400mm BR-BL-MT200 Hydraulic Disc Brake Set Front and Rear - FOOKER MTB Pedals Mountain Bike Pedals 3 Bearing Non-Slip Lightweight Nylon Fiber Bicycle Platform Pedals for BMX MTB 9/16" --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.com.ar/products/474150521-exa-form-900i-30-9mm-31-6mm-internal-routing-dropper](https://www.desertcart.com.ar/products/474150521-exa-form-900i-30-9mm-31-6mm-internal-routing-dropper) --- *Product available on Desertcart Argentina* *Store origin: AR* *Last updated: 2026-05-23*