---
product_id: 14275317
title: "Progressive Suspension 444-4001B Black 12.5\" Standard Big Mile Riders Rear Suspension Shock"
brand: "progressive suspension"
price: "€ 1394.10"
currency: EUR
in_stock: true
url: https://www.desertcart.fi/products/14275317-progressive-suspension-444-4001b-black-12-5-standard-big-mile
store_origin: FI
region: Finland
---

# Progressive rate spring for smooth ride Hand-adjustable spring preload, no tools needed Frequency Sensing Tech for adaptive damping Progressive Suspension 444-4001B Black 12.5" Standard Big Mile Riders Rear Suspension Shock

**Brand:** progressive suspension
**Price:** € 1394.10
**Availability:** ✅ In Stock

## Summary

> ⚡ Elevate your ride with smart suspension that keeps you ahead of the curve!

## Quick Answers

- **What is this?** Progressive Suspension 444-4001B Black 12.5" Standard Big Mile Riders Rear Suspension Shock by progressive suspension
- **How much does it cost?** € 1394.10 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/14275317-progressive-suspension-444-4001b-black-12-5-standard-big-mile)

## Best For

- progressive suspension enthusiasts

## Why This Product

- Trusted progressive suspension brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Smooth Operator:** Progressive rate spring delivers a balanced ride that’s firm when you need it, soft when you don’t.
- • **Tool-Free Tuning:** Easily adjust spring preload by hand—no special tools, no hassle, just personalized performance.
- • **Chrome That Shines:** Sleek chrome finish adds a premium look that stands out on your cruiser.
- • **Precision Engineering:** Deflective disc valve ensures consistent damping response on any road surface.
- • **Ride Smarter, Not Harder:** Frequency Sensing Technology dynamically adapts to every bump for unmatched comfort and control.

## Overview

The Progressive Suspension 444-4001B Rear Shock features cutting-edge Frequency Sensing Technology for real-time damping adjustment, a hand-adjustable spring preload for easy customization, and a progressive rate spring for superior ride quality. Finished in durable chrome, it’s designed specifically for street-cruiser motorcycles to deliver a smooth, responsive, and stylish upgrade.

## Description

After more than a decade of ruling the roads with the road proven 440 Series shocks, unveiled another breakthrough design. Dubbed Frequency Sensing Technology (FST) for its unique ability to dynamically adjust damping as you ride. The result is superior performance no matter the road conditions. A top mount threaded preload adjuster allows for fine tuning with a simple twist of the cap. Deflective disc valve. Adjust spring pre-load by hand, no special tool needed. Progressive rate spring. Standard spring rate and chrome finish.

## Features

- Frequency Sensing Technology (FST), allows the shocks to sense the frequency of a bump and automatically adjust damping for superior ride quality
- Deflective disc valve
- Adjust spring pre-load by hand, no special tool needed
- Progressive rate spring
- Standard spring rate and chrome finish

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Progressive Suspension |
| Auto Part Position | Rear |
| Style | Unique,Fine |
| Vehicle Service Type | street-cruiser-motorcycles |
| Exterior Finish | Chrome |
| Material | Chrome |
| Automotive Fit Type | Vehicle Specific Fit |
| UPC | 953040127391 |
| Manufacturer | Progressive Suspension |
| Model | 444SeriesShocks |
| Item Weight | 8.2 pounds |
| Product Dimensions | 17 x 7 x 3 inches |
| Item model number | 444-4001B |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | 444-4001B |

## Product Details

- **Brand:** Progressive Suspension
- **Auto Part Position:** Rear
- **Style:** Unique,Fine
- **Vehicle Service Type:** street-cruiser-motorcycles
- **Exterior Finish:** Chrome

## Images

![Progressive Suspension 444-4001B Black 12.5" Standard Big Mile Riders Rear Suspension Shock - Image 1](https://m.media-amazon.com/images/I/5173vPS3QiL.jpg)
![Progressive Suspension 444-4001B Black 12.5" Standard Big Mile Riders Rear Suspension Shock - Image 2](https://m.media-amazon.com/images/I/41Op2DcIWaL.jpg)

---

## 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.fi/products/14275317-progressive-suspension-444-4001b-black-12-5-standard-big-mile](https://www.desertcart.fi/products/14275317-progressive-suspension-444-4001b-black-12-5-standard-big-mile)

---

*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-01-31*