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Progressive Suspension Monotube Fork Cartridge Lowering Kit

20 Reviews

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  • Progressive Suspension Monotube Fork Cartridge Lowering Kit
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$224.96 Save 10%! Regularly: $249.99

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20 Reviews

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Progressive Suspension Monotube Fork Cartridge Lowering Kit

•Lowered version of Monotube Fork Cartridge kits, this kit will lower the front end of your bike up to 2”

• True high performance and increased comfort is provided with this kit by upgrading the technology your front forks are using

• This state-of-the-art monotube fork Kit represents the pinnacle of front end handling

• High performance specialty components replace the sloppy open bath damping found in stock H-D forks

• The kit features a set of gas charged monotube fork cartridges and a set of custom tuned fork springs, and is a complete direct replacement for your stock internal components

• Improved resistance to front brake dive

• Improved front end stability

• Improved cornering

• Improved bottoming control

Important Product Notes

Product Specs

Diameter: 41mm

Manufacturer Part Number: 31-2504

Sold in Units: Kit


This product fits a variety of motorcycles. Please select yours so we can find the right part and guarantee fitment. Select A Motorcycle

Click (+) to view all compatible models

Harley-Davidson® Models

Softail Convertible CVO FLSTSE3 : 2012
Softail Deluxe CVO FLSTNSE : 2014–2015
Softail Deluxe EFI FLSTNI : 2005–2006
Softail Deluxe FLSTN : 2006–2016
Softail Fat Boy Anniversary FLSTF : 2013
Softail Fat Boy CVO FLSTFSE : 2005
Softail Fat Boy CVO FLSTFSE2 : 2006
Softail Fat Boy EFI FLSTFI : 2001–2006
Softail Fat Boy FLSTF : 2000–2016
Softail Fat Boy Lo Anniversary FLSTFB : 2013
Softail Fat Boy Lo FLSTFB : 2010–2016
Softail Fat Boy S FLSTFBS : 2016
Softail Heritage Classic Anniversary FLSTC : 2013
Softail Heritage Classic EFI FLSTCI : 2001–2006
Softail Heritage Classic FLSTC : 2000–2016
Softail Heritage EFI FLSTI : 2006
Softail Heritage FLST : 2006, 2009
Softail Slim FLS : 2014–2016
Softail Slim S FLSS : 2016

Customer Reviews

Overall Rating:
5/5 based on 20 ratings

5 by

I love this kit. The responsiveness is just right. Incredibly easy installation.

5 by

A vast improvement to handling over the stock suspension.

5 by

Perform better than expected,would rate as one of the best upgrades for your Harley,s

5 by

Great fit. Better ride.

5 by

Rides like a dream.

5 by

Easy to install with the right tools. Instructions are a little lacking but the Progressive web site has great videos that helped.

5 by

The best way to lower a bike after installing a 21" front wheel. It actually rides better than stock.

5 by

I'll admit I was on the fence about if these monotubes would really make much of a difference. I am BLOWN AWAY at how much of a difference they made. It's hard to explain, but it really is like if you have ever driven a high end sports car, everything just feels tight and responsive, firm, but not hard. These were worth every penny, hell... i'd of paid twice as much knowing what I'm getting now. It's unbelievable how sloppy the stock HD suspension is.. and you probably won't even know it until you put this upgrade in. I have my rear end lowered 2", so I lowered the front 1" and my bike feels great. 2013 Street Glide.

5 by

Best value for the money

5 by

Great product! Instructions were exact, and tech support was second to none... Very pleased!

5 by

Good price, easy installation, great quality, I give it a 10

5 by

I just got the new shock cartridges installed and they are wonderful! Less nose dive on heavy braking, and very little front end lift on acceleration. This translates to a more controlled ride and is exactly what I was hoping for.

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