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Feuling Endurance Beehive Spring Kit with Titanium Retainers

Item: 345358

Fits: 2021 Harley Davidson FLRT Freewheeler

$539.95

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Feuling Endurance Beehive Spring Kit with Titanium Retainers


Feuling Endurance beehive valve springs are a direct bolt in replacement up to 565 lift camshafts no spring seat machining required. Machined from a premium grade hi-tensile chrome silicon single conical ovate wire, shot-peened with a specially processed thermal heat treat and super NexTex finish to give these valve springs the needed fatigue life to exceed the high demands of V-Twin engines from stock to performance.

Feuling beehive valve springs use a much smaller and lighter weight retainer which drastically reduces the valve weight creating a much quicker revving and smoother motion than comparable dual valve springs.

  • Direct bolt-in replacement up to 565 cam lift no machining or rocker box clearancing required
  • Eliminate valve spring separation, maximize stability, reduce valve-train noise and harmonics
  • Don't get stung by inferior valve springs
  • Aids a quicker-revving, smoother motion valvetrain
  • Kit includes:
    • Feuling Endurance Beehive valve springs
    • Titanium heat treated retainers
    • Machined spring seats
    • Seat shims
    • Valve locks
    • Rubber valve seals with a spring loaded valve stem wiper system
Specification Details
Country of Origin USA
Engine Type Milwaukee Eight
Warranty 1 Year Manufacturer Warranty

Vehicle Fitment


Fitment is guaranteed or your money back plus free return shipping.
Don’t waste time installing a product that doesn't fit. We worked hard ensuring that this product is an exact fit on the vehicles listed below.

Harley Davidson
  • FLDE Softail Deluxe 2018-2020
  • FLFB Softail Fat Boy 2018-2019
  • FLFBS Softail Fat Boy 114 2018-2024
  • FLHC Softail Heritage Classic 2018-2021
  • FLHCS Softail Heritage Classic 114 2018-2024
  • FLHR Road King 2017-2021
  • FLHRXS Road King Special 2017-2023
  • FLHTCU Electra Glide Ultra Classic 2017-2019
  • FLHTCUTG Tri Glide Ultra Classic 2021-2024
  • FLHTK Electra Glide Ultra Limited 2017-2023
  • FLHTKL Electra Glide Ultra Limited Low 2017-2019
  • FLHX Street Glide 2017-2023
  • FLHXS Street Glide Special 2017-2023
  • FLRT Freewheeler 2017-2022
  • FLSB Softail Sport Glide 2018-2021
  • FLSL Softail Slim 2018-2021
  • FLTRK Road Glide Limited 2020
  • FLTRU Road Glide Ultra 2017-2019
  • FLTRXS Road Glide Special 2017-2023
  • FXBB Softail Street Bob 2018-2020
  • FXBR Softail Breakout 2018-2019
  • FXBRS Softail Breakout 114 2018-2020
  • FXDR Softail 114 2019-2020
  • FXFB Softail Fat Bob 2018-2019
  • FXFBS Softail Fat Bob 114 2018-2023
  • FXLR Softail Low Rider 2018-2020
  • FXLRS Softail Low Rider S 2020

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