--- product_id: 437207524 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" brand: "jfoyh" price: "AR$454799" currency: ARS in_stock: true category: "Jfoyh" url: https://www.desertcart.com.ar/products/437207524-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 height control 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 **Brand:** jfoyh **Price:** AR$454799 **Availability:** ✅ In Stock ## Summary > 🚵‍♂️ Elevate your ride with precision and style—drop in, stand out! ## 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 by jfoyh - **How much does it cost?** AR$454799 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/437207524-exa-form-900i-30-9mm-31-6mm-internal-routing-dropper) ## 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 aluminum alloy for unbeatable strength-to-weight ratio. - • **Tailored Diameter Options:** Choose between 30.9mm or 31.6mm to perfectly match your bike’s seat tube for flawless installation. - • **Customizable Travel & Length:** Select from multiple travel (100/120/150mm) and length (345/395/445mm) options to suit your unique ride style. - • **Effortless On-the-Fly Adjustment:** Remote lever lets you instantly adapt seat height mid-ride without missing a beat. - • **Precision Fit for Internal Routing:** Designed exclusively for internal cable routing frames—no compromises on sleek integration. ## Overview The EXA Form 900i dropper post is a high-performance, internally routed seatpost engineered for mountain and e-bikes. Featuring durable 7075 aluminum alloy construction, it offers smooth remote-controlled height adjustments and multiple size options (diameter, length, and travel) to ensure a perfect fit and ride customization. Ideal for riders seeking sleek integration and reliable on-the-fly seat height changes. ## Description The 900-i boasts features typically only found on higher end droppers such as aluminum alloy construction, sealed cartridge, forged head parts, 1-piece mast and of course, It functions as a smooth, reliable dropper post. ## Features - For Internal Routing Frames Only – This dropper post is specifically designed for bikes with internal cable routing. Please confirm your frame supports internal routing before purchasing. - Select the Correct Diameter – Available in 30.9mm and 31.6mm. It’s crucial to measure your bike’s seat tube inner diameter and choose the matching size. An incorrect size will not fit. - Smooth Remote-Control Height Adjustment – Includes a remote lever for quick and precise seat height changes while riding, so you can adapt instantly without stopping. - Lightweight & Durable Alloy Construction – Crafted from 7075 aluminum alloy for strength and reliability. Weight ranges from approx. 480g (shortest) to 670g (longest) depending on the length. - Multiple Length & Travel Options – Choose from 345mm/395mm/445mm lengths with 100mm/120mm/150mm travel options to match your bike and riding style. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09YH4SNBM | | Best Sellers Rank | #45,277 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #27 in Bike Seat Posts | | Bike Type | Mountain Bike | | Brand Name | JFOYH | | Color | Black | | Customer Reviews | 4.2 4.2 out of 5 stars (245) | | Included Components | Dropper Post Body, Lever Kit | | Item Diameter | 30.9 millimeters | | Item Dimensions W x H | 3.94"W x 13.58"H | | Item Weight | 0.69 kg | | Manufacturer | JFOYH BIKE | | Manufacturer Part Number | BIKE DROPPER SEATPOST | | Material Type | Aluminum | | Model Number | Diameter: 30.9mm | | Number of Items | 1 | | UPC | 774144171987 | | Warranty Description | 12-month Limited Wrranty | ## Product Details - **Brand:** JFOYH - **Color:** Black - **Item Weight:** 0.69 kg - **Material:** Aluminum - **Product Dimensions:** 3.94"W x 13.58"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) ## Available Options This product comes in different **Size** 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 - 2x disc rotor brake pad for mountain bike bicycle --- ## 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/437207524-exa-form-900i-30-9mm-31-6mm-internal-routing-dropper](https://www.desertcart.com.ar/products/437207524-exa-form-900i-30-9mm-31-6mm-internal-routing-dropper) --- *Product available on Desertcart Argentina* *Store origin: AR* *Last updated: 2026-09-11*