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  See all Suspension products
Progressive High Performance Fork Cartridge Harley-Davidson FLDE | FLFB | FLHC | FXBB | FXST 2018-2021 - 31-4009
True high-performance front suspension is finally available. Progressive Suspension has gone back to the drawing board and created a state of the art Fork Cartridge Kit designed to outperform everything on the market. Their asymmetrical design places a preload adjuster over a progressive rate spring in one leg and an aluminum bodied, sealed cartridge damper on the other. The result is superior damping and ride control combined with tunable preload and a new benchmark for high-performance suspension on the Dyna platform. Each kit includes components for stock height or 1" lowered.

Features:
  • Adjustable preload
  • Improved front end stability
  • Improved cornering
  • Improved bottoming control
  • Improved resistance to front brake dive
Fitment:
  • Harley-Davidson FLDE Deluxe 2018-2020
  • Harley-Davidson FLFB Fat Boy 2018-2020
  • Harley-Davidson FLFBS Fat Boy 114 2018-2020
  • Harley-Davidson FLHC Heritage Classic 2018-2021
  • Harley-Davidson FLHCS Heritage Classic 114 2018-2021
  • Harley-Davidson FLSL Slim 2018-2021
  • Harley-Davidson FXBB Street Bob 2018-2020
  • Harley-Davidson FXBR Breakout 2018-2020
  • Harley-Davidson FXBRS Breakout 114 2018-2020
  • Harley-Davidson FXLR Low Rider 2018-2020
  • Harley-Davidson FXST Softail Standard 2020-2021

Other Part Numbers:
Progressive Suspension #pgr31-4009

Proposition 65

⚠ WARNING: Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

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Things
Sale price None
Wholesale price $568.25
Shipping Weight: 0.10
Length: 3
Width: 2
Height: 1
Product Added At Monday 13 June, 2022
Product Modified At Friday 11 July, 2025
Imported By ETLOverride
Last Edited By Turn_API
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Emissions Info
Carb Approved -
Carb Number -
Epa Status N/A
Prop65 Unknown
Carb Required -
Vendors
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Vendor Inv Cost Retail Jobber MAP Core Updated
Turn 14 $481.57 $687.95 ? $687.95 ? 2025-07-11 10:43:20


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