Monotube Cartridge Fork Kit — 39 mm (1.54") fork tube

PROGRESSIVE SUSPENSION Monotube Cartridge Fork Kit — 39 mm (1.54") fork tube – 07-15 Sportster

0414-0452
31-2515

High-performance monotube cartridge conversion with gas-charged cartridges and custom-tuned springs for better stability, reduced brake dive and improved bottoming control. No fork modification required.

Hurry! only 14 items left in stock.
€248.33
€312.19
Save €63.86
local_shipping In stock, ships in 2-3 days
Quantity

  Delivery policy

In stock items will be shipped within 1-3 days.

  Return policy

You can return the products within 14 days for a full refund, check our returns policy.

Convert dual damper rod forks to high-performance cartridge forks for improved front-end stability and control.

The kit contains gas-charged monotube cartridges and custom-tuned fork springs to improve resistance to brake dive, cornering precision and bottoming control.

Installation requires no fork modification; lowering kits reduce the front end up to 2". Made in the United States. Lowering kit is not for use on low models. 🔧

: 0414-0452
In Stock

Data sheet

Units
Kit
Style
Monotube
Brand
PROGRESSIVE SUSPENSION
Fork Tube Diameter
39,00 mm (1,54")
Height Adjustment
Standard

Shipping Policy

Shipping Areas:

We ship to:

  • Spain (Peninsula and Balearic Islands)
  • European Union countries

We do not ship to the Canary Islands, Ceuta, or Melilla.

Shipping Times:

  • Spain (Peninsula): 2–4 business days
  • Balearic Islands: 3–5 business days
  • EU countries: 3–7 business days depending on destination

Shipping Costs:

Shipping costs are calculated automatically at checkout based on destination and weight.

Free shipping may be offered for qualifying orders, as specified on our website.

Order Processing:

Orders are processed within 1–2 business days after payment confirmation. Orders placed on weekends or public holidays are processed the next business day.

Delivery Issues:

If your order is delayed or arrives damaged, you must notify us within 14 calendar days. We will investigate the issue and offer a resolution in accordance with applicable consumer protection laws.

Return & Withdrawal Policy

Right of Withdrawal:

In accordance with Royal Legislative Decree 1/2007 (Ley de Defensa de los Consumidores y Usuarios), you have the right to withdraw from your purchase within 14 calendar days from the date of receipt, without giving any reason.

To exercise this right, contact us via email or through our website, providing your order number and contact details.

Return Conditions:

  • Products must be unused, in original condition and packaging.
  • Return shipping costs are the responsibility of the customer, unless the product is defective or sent in error.
  • Refunds will be issued within 14 days of receiving the returned goods.

Items Excluded from Return:

  • Custom or personalized products
  • Sealed items that were unsealed after delivery and are unsuitable for return due to hygiene (e.g. cosmetics, personal care)
  • Digital content delivered electronically once download or streaming has begun

If you want to return an item, please contact us first to give you detailed instructions.

This product fits the following vehicles. Use the filters below to narrow down the list if needed.

Manufacturer Model Family Year Notes
Harley Davidson Nightster Sportster 2007
Harley Davidson Nightster Sportster 2008
Harley Davidson Nightster Sportster 2009
Harley Davidson Nightster Sportster 2010
Harley Davidson Nightster Sportster 2011
Harley Davidson Nightster Sportster 2012
Harley Davidson Forty-Eight Sportster 2010
Harley Davidson Forty-Eight Sportster 2011
Harley Davidson Forty-Eight Sportster 2012
Harley Davidson Forty-Eight Sportster 2013
Harley Davidson Forty-Eight Sportster 2014
Harley Davidson Forty-Eight Sportster 2015
Harley Davidson Forty-Eight Sportster 2014
Harley Davidson Forty-Eight Sportster 2015
Harley Davidson Low Sportster 2007
Harley Davidson Low Sportster 2008
Harley Davidson Low Sportster 2009
Harley Davidson Low Sportster 2010
Harley Davidson Iron Sportster 2009
Harley Davidson Iron Sportster 2010
Harley Davidson Iron Sportster 2011
Harley Davidson Iron Sportster 2012
Harley Davidson Iron Sportster 2013
Harley Davidson Iron Sportster 2014
Harley Davidson Iron Sportster 2015
Harley Davidson Iron Sportster 2014
Harley Davidson Iron Sportster 2015