---
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: "$14.95"
currency: USD
in_stock: false
url: https://www.desertcart.ec/products/14946989-fitdesk-universal-saddle-extender-for-fdx-2-0-and-3
store_origin: EC
region: Ecuador
---

# 3.5-inch adjustable height boost Rust-resistant powder coat finish 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:** $14.95
**Availability:** ❌ Out of Stock

## Summary

> 🚴‍♂️ Elevate your ride, elevate your grind — height meets hustle!

## 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?** $14.95 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/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 Steel Build:** Engineered with precision-welded solid steel for unwavering stability during intense rides.
- • **Sleek Rust-Resistant Finish:** Matte black powder coating keeps your extender looking sharp and corrosion-free over time.
- • **Customizable Height Extension:** Adjust or trim the post to perfectly fit your height, ensuring optimal posture and comfort.
- • **Universal Saddle Compatibility:** Swap in any standard bike saddle to match your ergonomic style and comfort needs.
- • **Tailored Fit for FitDesk 2.0 & 3.0:** Seamlessly upgrade your existing bike desk without compatibility headaches.

## Overview

The FitDeskUniversal Saddle Extender is a precision-engineered steel adapter designed exclusively for FitDesk Bike Desk 2.0 and 3.0 models. It increases saddle height by up to 3.5 inches with adjustable customization, supports any standard bike saddle, and features a durable rust-resistant powder coat for long-lasting performance. Perfect for taller users seeking ergonomic comfort during their work-ride sessions.

## Description

Full description not available

## 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 |
|---------------|-------|
| Item Package Dimensions L x W x H | 4.13 x 4.02 x 4.02 inches |
| Package Weight | 0.61 Kilograms |
| Item Dimensions  LxWxH | 4 x 4 x 4 inches |
| Brand Name | FitDesk |
| Warranty Description | The structural frame has a one-year warranty. Non-structural frame parts have a 90-day warranty. |
| Model Name | Saddle Adapter |
| Color | Black |
| Material | Solid steel |
| Suggested Users | unisex-adult |
| Number of Items | 1 |
| Manufacturer | FD Products Inc. |
| Part Number | 9016 |
| Included Components | universal adapter |

## 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)
![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 2](https://m.media-amazon.com/images/I/71nRtFulz2L.jpg)
![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 3](https://m.media-amazon.com/images/I/71Ne7+lSunL.jpg)
![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 4](https://m.media-amazon.com/images/I/71lwzXmP7YL.jpg)
![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 5](https://m.media-amazon.com/images/I/81mICGQfpoL.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
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*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-01-23*