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Progressive Suspension 444 Black 12" Standard Duty Shocks

J&P Cycles Part Number: 504-524

Manufacturer Part Number: 444-4054B

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Description for Progressive Suspension 444 Black 12" Standard Duty Shocks

• After more than a decade of ruling the roads with their famous 440 Series shocks with IAS, Progressive Suspension has unveiled another breakthrough design

• It is dubbed Frequency Sensing Technology (FST) for its unique ability to dynamically adjust damping as you ride

• Frequency Sensing Technology allows the shocks to sense the frequency of a bump and automatically adjust damping for superior ride quality

• These shocks also feature deflective disc valving, hand adjustable spring pre-load (no special tools needed), and progressive rate springs

• High pressure gas charged for consistent performance

• Sold in pairs

• Lifetime Limited Warranty

Product Specs

Product Specs for Progressive Suspension 444 Black 12" Standard Duty Shocks

Manufacturer Part Number:
Shock Length:
Shock Style:
Gas Filled
Sold in Units:
Standard or Heavy Duty:
Standard Duty
Warehouse Part Number:
Fitment Questions?

With over 750 years of experience combined, our tech staff has the answers!

Compatible Models

Harley-Davidson® Models

  • V-Rod CVO VRSCSE : 2005–2006
  • V-Rod Night Rod VRSCD : 2006
  • V-Rod VRSCA : 2002–2006
  • V-Rod VRSCB : 2004–2005
Customer Reviews

Customer Reviews for Progressive Suspension 444 Black 12" Standard Duty Shocks

Overall Rating

5 out of 5 stars (based on 9 reviews)

5 stars (7)

4 stars (2)

3 stars (0)

2 stars (0)

1 star (0)

0 stars (0)

nyyanksca on 3/1/2019

5 Star

jimmyngau on 5/13/2018

Good recommendation on the spring height by J&P Cycles and good shocks for Iron 883.

Dfulgieri on 2/26/2018

Perfect much better then the stock shocks

tijae76 on 4/18/2017

Amazing shocks. They're like night & day compared to the Hurleys I had. Super soft ride & handling is greatly improved. Make sure you get the correct shock per weight displacement of you and passenger. Tech support cleared that up with me

ltfuzz01 on 6/26/2015

1st set of aftermarket shocks i have already noticed they perform better than oem shocks. very good product so far

willie marsh on 12/17/2014

No more bottoming out and jarring on small bumps on the road around town.

STU250 on 3/6/2014

100% improvement to ride!

Patrik on 12/20/2013

Shock are very good

lablover1028 on 11/4/2013

I purchased these shocks for a 2012 FXDWG. I have had a wonderful experience with them so far. I had the 412 series on before these and will tell you right now that there is a huge difference. The bike is much more stable on bumps and riding around uneven pavement when cornering. Major improvement from the 412's when riding two up.

Important Product Notes

Note: When shocks are different than stock length, clearance must be carefully checked for potentially dangerous interference.

Warranty Information

Manufacture's Lifetime Limited Warranty

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