--- product_id: 14946989 title: "Bike Seat Extender - Universal Saddle Adapter for FDX 2.0 and 3.0" brand: "fitdesk" price: "$111.90" currency: USD in_stock: true category: "Fit Desk" url: https://www.desertcart.us/products/14946989-bike-seat-extender-universal-saddle-adapter-for-fdx-2-0 store_origin: US region: United States of America --- # 3.5-inch adjustable height Solid steel durability Rust-resistant powder coat Bike Seat Extender - Universal Saddle Adapter for FDX 2.0 and 3.0 **Brand:** fitdesk **Price:** $111.90 **Availability:** βœ… In Stock ## Summary > πŸš΄β€β™‚οΈ Elevate your ride, elevate your grind β€” comfort meets power in every inch! ## Quick Answers - **What is this?** Bike Seat Extender - Universal Saddle Adapter for FDX 2.0 and 3.0 by fitdesk - **How much does it cost?** $111.90 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/14946989-bike-seat-extender-universal-saddle-adapter-for-fdx-2-0) ## 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 - β€’ **Robust Solid Steel Build:** Engineered for strength and stability to power through your toughest rides. - β€’ **Adjustable Height Extension:** Add up to 3.5 inches for a personalized ergonomic ride that fits taller users. - β€’ **Sleek Rust-Resistant Finish:** Stay sharp with a durable black powder coat that resists wear and keeps your setup looking fresh. - β€’ **Universal Saddle Compatibility:** Swap in any standard bike saddle with easeβ€”customize your comfort your way. - β€’ **Tailored Fit for FitDesk 2.0 & 3.0:** Seamlessly upgrade your bike desk with a perfect match for models 2013+. ## Overview The FitDesk Universal Saddle Extender FDX 2.0 & 3.0 is a precision-engineered alloy steel seat post riser designed exclusively for FitDesk Bike Desk models from 2013 onward. 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 customization for professional and active users seeking enhanced comfort and performance. ## Description desertcart.com: FitDesk Bike Seat Extender - Universal Saddle Adapter for FDX 2.0 and 3.0 | 3.5-Inch Height Increase, Solid Steel Construction, Rail-Mount Compatibility, Powder-Coated Finish, Welded Base : Sports & Outdoors ## Features - ADDITIONAL SADDLE HEIGHT: The FitDesk bike seat extender raises the saddle mounting position by 3.5 inches to accommodate taller riders. The added legroom provides more flexibility when adjusting your seating position for cycling, working, or reading. - SOLID STEEL CONSTRUCTION: Built with a sturdy steel post and precision-welded connections, this bike seat attachment provides a rigid mounting structure. Its powder-coated finish helps protect the surface from rust and abrasion during regular indoor use. - FLEXIBLE SADDLE SELECTION: The universal adapter accommodates standard bicycle saddles with mounting rails, allowing users to select a seat based on their preferences. This provides an alternative seating option without requiring replacement of the entire exercise bike. - PRACTICAL SEAT CUSTOMIZATION: This exercise bike accessory allows users to modify their existing seating arrangement to accommodate different riding preferences. Its compact mounting design integrates with the designated frame while retaining the bike's original functionality. - FITDESK MODEL COMPATIBILITY: Designed for FitDesk FDX 2.0 and 3.0 exercise bikes manufactured from 2013 onward, this saddle extender provides a model-specific upgrade option. Confirm your bike version and saddle hardware requirements before installation. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00M24K97G | | Best Sellers Rank | #209,642 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #406 in Bike Saddles | | Brand Name | FitDesk | | Color | Black | | Customer Reviews | 4.2 4.2 out of 5 stars (200) | | Global Trade Identification Number | 00857989004211 | | Included Components | universal adapter | | Item Highlight | 3.5-Inch Height Increase, Solid Steel Construction, Rail-Mount Compatibility, Powder-Coated Finish, Welded Base | | Item Type Name | Universal Saddle Adapter | | Manufacturer | FD Products Inc. | | Manufacturer Part Number | 9016 | | Material Type | Alloy Steel | | Model Number | 9016 | | Number of Items | 1 | | UPC | 857989004211 | | Unit Count | 1 Count | | Warranty Description | The structural frame has a one-year warranty. Non-structural frame parts have a 90-day warranty. | ## Product Details - **Brand:** FitDesk - **Color:** Black - **Manufacturer:** FD Products Inc. - **Material:** Alloy Steel - **UPC:** 857989004211 ## Images ![Bike Seat Extender - Universal Saddle Adapter for FDX 2.0 and 3.0 - 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 ## 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? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/14946989-bike-seat-extender-universal-saddle-adapter-for-fdx-2-0](https://www.desertcart.us/products/14946989-bike-seat-extender-universal-saddle-adapter-for-fdx-2-0) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-11-09*