--- product_id: 14946989 title: "FitDesk Universal Saddle Extender for FDX 2.0 & 3.0 - Adjustable Bike Seat Post Riser Adapter, Increases Saddle Height by 3.5 Inches, Steel Post Extension, Exercise Bicycle Seat Adapter" brand: "fitdesk" price: "C$4911" currency: NIO in_stock: true reviews_count: 13 category: "Fit Desk" url: https://www.desertcart.ni/products/14946989-fitdesk-universal-saddle-extender-for-fdx-2-0-and-3 store_origin: NI region: Nicaragua --- # rust-resistant powder coat 3.5-inch adjustable height solid steel durability FitDesk Universal Saddle Extender for FDX 2.0 & 3.0 - Adjustable Bike Seat Post Riser Adapter, Increases Saddle Height by 3.5 Inches, Steel Post Extension, Exercise Bicycle Seat Adapter **Brand:** fitdesk **Price:** C$4911 **Availability:** ✅ In Stock ## Summary > 🚴‍♂️ Elevate your ride, elevate your grind! ## Quick Answers - **What is this?** FitDesk Universal Saddle Extender for FDX 2.0 & 3.0 - Adjustable Bike Seat Post Riser Adapter, Increases Saddle Height by 3.5 Inches, Steel Post Extension, Exercise Bicycle Seat Adapter by fitdesk - **How much does it cost?** C$4911 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.ni](https://www.desertcart.ni/products/14946989-fitdesk-universal-saddle-extender-for-fdx-2-0-and-3) ## Best For - fitdesk enthusiasts ## Why This Product - Trusted fitdesk brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Robust Solid Steel Build:** Engineered for strength and stability during your most intense rides. - • **Adjustable Height Extension:** Add up to 3.5 inches of saddle height for a perfect ergonomic fit. - • **Sleek Rust-Resistant Finish:** Maintain a fresh, professional look with durable black powder coating. - • **Universal Saddle Compatibility:** Swap in any standard bike saddle with ease—custom comfort, no limits. - • **Tailored Fit for FitDesk 2.0 & 3.0:** Seamlessly upgrade your existing bike desk without compatibility guesswork. ## Overview The FitDesk Universal Saddle Extender is a precision-engineered steel adapter designed exclusively for FitDesk Bike Desk 2.0 and 3.0 models (2013+). It offers a versatile 3.5-inch adjustable height extension, universal compatibility with standard bike saddles, and a rust-resistant powder-coated finish, ensuring durability and ergonomic comfort for professional-grade indoor cycling. ## Description desertcart.com : FitDesk Universal Saddle Extender for FDX 2.0 & 3.0 - Adjustable Bike Seat Post Riser Adapter, Increases Saddle Height by 3.5 Inches, Steel Post Extension, Exercise Bicycle Seat Adapter : Sports & Outdoors Review: Worked on my Sunny Health indoor bike and I love it! - Worked on my Sunny Health indoor bike. Bought my(just like new), indoor bike off my buddy for $75 bucks about a year ago. Had been collecting dust in the garage till I decided to re-kick start my cardio recently. The stock seat my bike came with was uncomfortable and not designed for Spin type exercises, which I like. Didn't want to splurge on an indoor Spin Bike just yet, so I decided to buy this adaptor which fit my Sunny Health Bike perfectly. Yes, flat and lock washers included too. No issues. Took 15 minutes. 1(2 works best) small crescent wrench(s)(to remove the old seat and to tighten bike seat collar), Hex Key/Allen wrench(don't recall the size I used. But a cheap set from the 99 cent store would work). Looks and feels sturdy. Did raise the seat level up a bit but was able to adjust to a lower setting on the seat post. Great price and easy to assemble. No regrets. Hope this helps. Review: Fits Felxispot and makes the seat higher - This product fit my Flexispot bike perfectly. It is exactly as pictured, well made (the post is solid steel bar, not tube), and will make your bike seat a lot higher. I am 5'8" and it was not a problem, but if you are a lot shorter, it could be an issue for you. If you are taller and want more seat height, this may be the trick for you! Not I have a seat I really like, a major upgrade! ## Features - COMPATIBLE FITDESK MODELS - Specifically designed for FitDesk Bike Desk 2.0 and 3.0 models from 2013 and newer. Verify your bike’s model and year for compatibility, as this saddle extender does not work with older versions. - UNIVERSAL SADDLE ADAPTER - Allows for the installation of any standard bike saddle with rails, offering flexibility in your choice of seat. Note that the standard saddle clamp is not included, so you will need to use your existing clamp. - SOLID STEEL CONSTRUCTION - Constructed from high-quality solid steel for unmatched durability and strength. The precision welds and robust design ensure the saddle extender remains stable and reliable, even during intense workouts. - ADJUSTABLE HEIGHT EXTENSION - Features an adjustable post that can extend the saddle height by 3.5 inches, accommodating taller users for a comfortable ride. The post can also be cut down for a lower saddle position, making it versatile for different user heights. - RUST-RESISTANT POWDER COAT - Coated with a durable black powder finish that resists rust and abrasion. This coating helps maintain the extender’s appearance and performance over time, ensuring it looks good and functions well through daily use. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00M24K97G | | Best Sellers Rank | #602,491 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #1,346 in Bike Saddles | | Brand Name | FitDesk | | Color | Black | | Customer Reviews | 4.1 4.1 out of 5 stars (195) | | Date First Available | July 23, 2014 | | Included Components | universal adapter | | Item Dimensions LxWxH | 4 x 4 x 4 inches | | Item Package Dimensions L x W x H | 4.13 x 4.02 x 4.02 inches | | Manufacturer | FD Products Inc. | | Material | Solid steel | | Model Name | Saddle Adapter | | Number of Items | 1 | | Package Weight | 0.61 Kilograms | | Part Number | 9016 | | Suggested Users | unisex-adult | | Warranty Description | The structural frame has a one-year warranty. Non-structural frame parts have a 90-day warranty. | ## Images ![FitDesk Universal Saddle Extender for FDX 2.0 & 3.0 - Adjustable Bike Seat Post Riser Adapter, Increases Saddle Height by 3.5 Inches, Steel Post Extension, Exercise Bicycle Seat Adapter - Image 1](https://m.media-amazon.com/images/I/81IQEyucy1L.jpg) ## Questions & Answers **Q: Pole for seat for taller person** A: No, it is a seat adapter that you can use for your own seat to work with the FitDesk Bike Desks. **Q: is this compatible with the marcy NS-652?** A: Yes, the FitDesk Universal Saddle Extender adapter will fit the Marcy NS-652 foldable exercise bike. However, you will sit about 3" higher with a new bike seat attached. Because the supplied seat clamp with this kit has a post stop that prevents the seat from being lowered farther on the bike post. You will therefore have to lower the Marcy square white seat post two holes. If you are currently using one of the two lowest positions your feet will not touch the pedals. You could buy a different seat clamp that doesn’t have the post stop and lower your new seat an additional 1’ to 1 1/2" and thus have to lower your sq. white seat post only one position instead of two. See my review below with a photo of the adapter attached to a Marcy NS-652. **Q: Can you flip this and use the round part as the post that goes into your bike the take the 3 whole part and bolt it to your bike seat.?** A: Yes **Q: Does the "fitdesk universal saddle adapter" work with the "fitdesk semi-recumbent pedal desk" (the old fitdesk); i bought it from amazon in 2012.** A: It worked for me but I bought my pedal desk in 2015 ## Customer Reviews ### ⭐⭐⭐⭐⭐ Worked on my Sunny Health indoor bike and I love it! *by T***R on September 3, 2018* Worked on my Sunny Health indoor bike. Bought my(just like new), indoor bike off my buddy for $75 bucks about a year ago. Had been collecting dust in the garage till I decided to re-kick start my cardio recently. The stock seat my bike came with was uncomfortable and not designed for Spin type exercises, which I like. Didn't want to splurge on an indoor Spin Bike just yet, so I decided to buy this adaptor which fit my Sunny Health Bike perfectly. Yes, flat and lock washers included too. No issues. Took 15 minutes. 1(2 works best) small crescent wrench(s)(to remove the old seat and to tighten bike seat collar), Hex Key/Allen wrench(don't recall the size I used. But a cheap set from the 99 cent store would work). Looks and feels sturdy. Did raise the seat level up a bit but was able to adjust to a lower setting on the seat post. Great price and easy to assemble. No regrets. Hope this helps. ### ⭐⭐⭐⭐⭐ Fits Felxispot and makes the seat higher *by E***N on November 22, 2020* This product fit my Flexispot bike perfectly. It is exactly as pictured, well made (the post is solid steel bar, not tube), and will make your bike seat a lot higher. I am 5'8" and it was not a problem, but if you are a lot shorter, it could be an issue for you. If you are taller and want more seat height, this may be the trick for you! Not I have a seat I really like, a major upgrade! ### ⭐⭐⭐⭐ Works perfectly on my European stationary bike *by A***R on May 5, 2020* Update: I had to reorder the adapter, hoping the whole product was in the box this time... and it WAS!! Thankfully. Got home, installed in just a few minutes. Works perfectly on my European stationary bike. Giving it a four because I received only partial product the first round and still waiting on refund. Before: Unable to install, as I only received the bike clamp. I ordered the all black saddle adapter. The product box arrived with a photo of an aluminum pole with a black base, w/ black clamp. Inside box, that was taped closed, was only the clamp. I had this shipped to an APO, took about 2 weeks to get here, I am a little discouraged. ## Frequently Bought Together - FitDesk Universal Saddle Extender for FDX 2.0 & 3.0 - Adjustable Bike Seat Post Riser Adapter, Increases Saddle Height by 3.5 Inches, Steel Post Extension, Exercise Bicycle Seat Adapter - Comfortable Seat Cushion for Men Women with Dual Shock Absorbing Ball Memory Foam Waterproof Wide Bicycle Saddle Fit for Road Bikes - IPOW Comfort Bike Seat for Women or Men, Bicycle Saddle Replacement Padded Soft High Density Memory Foam with Dual Shock Absorbing Rubber Balls Suspension Universal Fit for Indoor/Outdoor Bikes --- ## 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.ni/products/14946989-fitdesk-universal-saddle-extender-for-fdx-2-0-and-3](https://www.desertcart.ni/products/14946989-fitdesk-universal-saddle-extender-for-fdx-2-0-and-3) --- *Product available on Desertcart Nicaragua* *Store origin: NI* *Last updated: 2026-04-24*