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Progressive Suspension Stock Length Fork Spring Kit

J&P Cycles Part Number: 230-333

Manufacturer Part Number: 11-1525

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Description for Progressive Suspension Stock Length Fork Spring Kit

• The 'Original' Progressive Rate Fork Springs soak up the small road bumps, yet are firm enough to absorb the molar-rattling ones

• Spring rates have been chosen to reduce front end "dive" during braking, yet still provide excellent ride comfort

• Lifetime fork spring warranty

• Progressive Rate Fork Springs have several advantages over straight rate springs, advantage of a rising rate resistance to compression this helps in varying road conditions from small road imperfections to pothole filled roads

• The benefit of this is progressive spring rate is that the spring can be soft enough at the start of the travel to offer a "plush" ride, yet be firm enough at the end of the travel to soak up the big bumps

• Ideal performance improvement when installing chrome lower forks

• They eliminate sag, reduce nose dive under braking, improve stability and increase ride comfort

• Sold in sets that include correct spacers for the application

Product Specs

Product Specs for Progressive Suspension Stock Length Fork Spring Kit

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Fitment Questions?

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Compatible Models

Harley-Davidson® Models

  • Dyna Fat Bob CVO FXDFSE2 : 2010
  • Dyna Fat Bob FXDF : 2008–2014, 2016–2017
  • Dyna Low Rider EFI FXDLI : 2006
  • Dyna Low Rider FXDL : 2007–2017
  • Dyna Street Bob EFI FXDBI : 2006
  • Dyna Street Bob FXDB : 2007–2017
  • Dyna Street Bob FXDBB : 2015–2016
  • Dyna Street Bob FXDBP : 2013–2016
  • Dyna Super Glide 35th Anniversary EFI FXDI35 : 2006
  • Dyna Super Glide Custom Anniversary FXDC : 2013
  • Dyna Super Glide Custom EFI FXDCI : 2006
  • Dyna Super Glide Custom FXDC : 2007–2014
  • Dyna Super Glide EFI FXDI : 2006
  • Dyna Super Glide FXD : 2007–2010
  • Dyna Wide Glide EFI FXDWGI : 2006
  • Dyna Wide Glide FXDWG : 2007–2008, 2010–2017
  • Softail Breakout FXSB : 2013–2017
  • Softail Rocker C FXCWC : 2008–2011
  • Softail Rocker FXCW : 2008–2009
  • V-Rod CVO VRSCSE : 2005
  • V-Rod NHRA Commemorative Edition VRSCX : 2007
  • V-Rod Night Rod Special VRSCDX : 2007–2011
  • V-Rod Night Rod VRSCD : 2006–2008
  • V-Rod Street Rod VRSCR : 2006–2007
  • V-Rod VRSCA : 2002–2006
  • V-Rod VRSCAW : 2007–2010
  • V-Rod VRSCB : 2004–2005
Customer Reviews

Customer Reviews for Progressive Suspension Stock Length Fork Spring Kit

Overall Rating

5 out of 5 stars (based on 71 reviews)

5 stars (64)

4 stars (5)

3 stars (1)

2 stars (0)

1 star (0)

0 stars (1)


Much better than stock


These springs are the perfect match for the progressive rear shocks I purchased also, great suspension set up for my FXDB..


Great purchase! JP customer`s service was awesome and shipping and delivery time was impressive. TKS!


they work great in my Dyna by adding stability in hard riding and a smooth ride on the hiway.


Bike rides better than when it was new. Rode the stelvio pass 2 days after installation and couldnt have asked for a better ride


I was looking for more stability but what I found was a smoother ride. I didn't think my 07 DYNA rode rough before but the difference is like night and day. What a smooth ride! Very easy to install. I used a wine cork and a BBQ skewer to measure the required amount of oil. I don't think I ever bought a Harley part for under $100 that made as much difference.


Cheap upgrade for the improvements gained. The springs work so much better than stock, it makes me resent H-D for spec'ing out the bike with such cheapness. Although a pretty straight forward job it does require a stable jack/lift and a good relialbe helper. My awesome girlfriend was paitent and stong and assertive when needed. You'll be lucky to have half of what I had :) Getting the fork caps back on was the most difficult part. Get a good fork-cap socket and an extension and you'll have a better handle to put down the required force to get the caps re-threaded. I was pushing down on the assembly while she used a wrench to twist on the fork cap socket. Good luck and enjoy the smoother more confident stability of your new fork :)


put these on a 2013 FXDWG. they stopped the front fork dive I was getting at red lights. Bike front forks were dipping when I would come to a stop. had a lot of spring action. The Progressive springs stopped 90% of it. great buy!


say goodbye to front end dive and hello to improved handling


Easy to install. Instructions were clear and bike rides better. No more front end sag coming to a stop. Took me a couple days, but I've never pulled the front end off so had a bit of a learning curve to overcome and needed some tools for my 2010 fxdf.

Warranty Information

Manufacturer’s Lifetime Warranty

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