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Progressive Monotube Fork Cartridge Kit For Harley Sportster 2007-2014

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Progressive Suspension Monotube Fork Cartridge Kit For Harley Sportster

True high-performance front suspension has finally made its way to HD. Progressive's 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 HD forks. The kit features a set of gas charged monotube dampers and a set of custom tuned fork springs so you can convert your bike to cartridge forks whether you have dual damper rod forks or a damper rod/cartridge setup.


  • Complete fork internal replacement kit
  • Improved resistance to front brake dive, front end stability & cornering traits, and better avoidance of "bottoming out"
  • Made in USA
  • Progressive spring rate
  • High-quality chrome-silicon wire
  • Precision wound


View Fitment Notes & Exceptions

Fitment Notes & Exceptions

  • Changing ride height can potentially change many carefully-engineered attributes of your bike, including trail and mechanical trail
  • A change in ride height at one end of the vehicle usually will require a change at the other end
  • Prior to purchasing front-end components that are different than your OEM length, please verify that wheel and suspension travel can be altered without causing clearance issues - common interference spots include triple trees, fenders, frame, and of course, the ground
This Product Fits:
Harley Davidson
Sportster Forty-Eight XL1200X 2010, 2011, 2012, 2013, 2014
Sportster Iron XL883N 2010, 2011, 2012, 2013, 2014
Sportster Low/SuperLow XL883L 2007, 2008, 2009, 2010
Sportster Nightster XL1200N 20072012
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Progressive Monotube Fork Cartridge Kit For Harley Sportster 2007-2014
Already Asked: 1 Question, 2 Answers
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RevZilla Store asked: Why did you choose this?
Ricky G: I finally installed these on my 2013 Sportster and I couldn't be happie
The handling is what it should've been from the beginning.
Progressive Suspension has it dialed in just right. The handling is incredible.
My Sporty feels like a new bike....No front brake dive anymore, it eats the bumps like Cookie Monster eats his favorite treats.
Best money I've ever spent so far. Well done Progressive!!!
Sep 17, 2014
George P: Wanted to get rid of antiquated Oil bath dampening system, and replace with the more predictable ride characteristics of gas charged monotube.

Safety while cornering and stopping.

Minimum maintenance requirements.
Jul 15, 2014
Product Style RevZilla Item # Manufacturer Product # Availability
2" Drop Kit 903034 312518 In Stock: Ships within 24 hours
Stock Height Kit 903017 312515 Available: Expect 1-2 business days processing time prior to shipment