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Progressive Heavy Duty Fork Springs For Harley Tri-Glide 2009-2013
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Progressive Suspension Heavy Duty Fork Springs For Harley Trike

The heavy-duty progressive-rate fork springs soak up small road bumps, yet are firm enough to absorb the ones that shake the kidneys. Spring rates have been chosen to reduce front end dive during braking, yet still provide excellent ride comfort, and also balance the weight of a bike laden with greater-than-average loads. A progressive-rate spring has the advantage of a resistance to compression that rises as the spring is being compressed - it gets tougher to compress as it is compressed. The benefit of this 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.


  • Progressive spring rate
  • High-quality chrome-silicon wire
  • Precision wound
  • Made in USA

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
  • Heavy Duty shocks are recommended for bikes operated at or near the OEM maximum load rating over 50% of the time
  • Prior to purchasing springs 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
Street Glide Trike FLHXXX 2010, 2011
Tri Glide Ultra Classic FLHTCUTG 2009, 2010, 2011, 2012, 2013
Product Style RevZilla Item # Manufacturer Product # Availability
Progressive Heavy Duty Fork Springs For Harley Tri-Glide 2009-2013 903004 111549 Available: Expect 1-2 business days lead time prior to shipment


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Progressive Heavy Duty Fork Springs For Harley Tri-Glide 2009-2013
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