Heavy-Duty Fork Spring Kit — 470 mm (18.5"), 0.79–1.27 kg/mm, pair

PROGRESSIVE SUSPENSION Heavy-Duty Fork Spring Kit — 470 mm (18.5"), 0.79–1.27 kg/mm, pair – 95-96 Dyna, 88-92 FXR, 15-20 Street, 88-99, 02, 04, 06-20 Sportster

PROGRESSIVE SUSPENSION
0405-0315
11-1552

Heavy-duty fork spring upgrade improves front-end stability and reduces brake dive. Includes rate springs, preload spacers and a 3.00" spacer. Cost-effective solution for heavier riders or those wanting a firmer, high-performance fork feel.

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Heavy-duty fork springs engineered to firm up the front end for heavier riders or those seeking a high-performance feel. 🔧

  • Cost-effective upgrade that delivers a substantial increase in front-end ride quality.
  • Includes rate springs combined with preload spacers and a 3.00" spacer. ⚙️
  • Enhances front-end stability and reduces brake dive for more confident handling.

Easy to install and tuned for a firmer, controlled ride. 🛠️

: 0405-0315
In Stock

Data sheet

Units
Pair
Brand
PROGRESSIVE SUSPENSION
Outside Diameter
39.00 mm (1.54")
Length
470,00 mm (18,50")
Spring Rate
0,79 kg/mm - 1,27 kg/mm (44 lb/in - 71 lb/in)
Harley Family
Dyna
FXR
Sportster
Street

This product fits the following vehicles. Use the filters below to narrow down the list if needed.

Manufacturer Model Family Year Notes
Harley Davidson Dyna Low Rider Dyna 1995
Harley Davidson Dyna Low Rider Dyna 1996
Harley Davidson Dyna Super Glide Convertible Dyna 1995
Harley Davidson Dyna Super Glide Convertible Dyna 1996
Harley Davidson Sport Glide FXR 1988
Harley Davidson Sport Glide FXR 1989
Harley Davidson Sport Glide FXR 1990
Harley Davidson Sport Glide FXR 1991
Harley Davidson Sport Glide FXR 1992
Harley Davidson Street Street 2015
Harley Davidson Street Street 2016
Harley Davidson Street Street 2017 Hvy Duty
Harley Davidson Street Street 2018 Hvy Duty
Harley Davidson Street Street 2019 Hvy Duty
Harley Davidson Street Street 2020 Hvy Duty
Harley Davidson Street Street 2017 Hvy Duty
Harley Davidson Street Street 2018 Hvy Duty
Harley Davidson Street Street 2019 Hvy Duty
Harley Davidson Street Street 2020 Hvy Duty
Harley Davidson Street Street 2015
Harley Davidson Street Street 2016
Harley Davidson Street Street 2017 Hvy Duty
Harley Davidson Street Street 2018 Hvy Duty
Harley Davidson Street Street 2019 Hvy Duty
Harley Davidson Street Street 2020 Hvy Duty
Harley Davidson Street Rod Street 2018
Harley Davidson Street Rod Street 2019
Harley Davidson Street Rod Street 2017
Harley Davidson Street Rod Street 2018
Harley Davidson Street Rod Street 2019
Harley Davidson Street Street 2017 Hvy Duty
Harley Davidson Street Street 2018 Hvy Duty
Harley Davidson Street Street 2019 Hvy Duty
Harley Davidson Street Street 2020 Hvy Duty
Harley Davidson Sportster Custom Sportster 2004
Harley Davidson Sportster Custom Sportster 2006
Harley Davidson Sportster Custom Sportster 2009
Harley Davidson Sportster Custom Sportster 2011
Harley Davidson Sportster Custom Sportster 2015
Harley Davidson Sportster Custom Sportster 2017
Harley Davidson Sportster Custom Sportster 2014
Harley Davidson Sportster Custom Sportster 2015
Harley Davidson Sportster Custom Sportster 2016
Harley Davidson Sportster Custom LE A Sportster 2014
Harley Davidson Sportster Custom LE A Sportster 2015
Harley Davidson Sportster Custom LE A Sportster 2016
Harley Davidson Sportster Custom LE B Sportster 2014
Harley Davidson Sportster Custom LE B Sportster 2015
Harley Davidson Sportster Custom LE B Sportster 2016
Harley Davidson Sportster Custom LE B Sportster 2017
Harley Davidson Roadster Sportster 2016
Harley Davidson Roadster Sportster 2017
Harley Davidson Low Sportster 2006
Harley Davidson Nightster Sportster 2007
Harley Davidson Nightster Sportster 2008
Harley Davidson Nightster Sportster 2009
Harley Davidson Sportster Iron Sportster 2018
Harley Davidson Roadster Sportster 2008
Harley Davidson Sportster Superlow Sportster 2018 Hvy Duty
Harley Davidson Sportster Superlow Sportster 2019 Hvy Duty
Harley Davidson Sportster Superlow Sportster 2018 Hvy Duty
Harley Davidson Sportster Superlow Sportster 2019 Hvy Duty
Harley Davidson Sportster Superlow Sportster 2020 Hvy Duty
Harley Davidson Seventy-Two Sportster 2012
Harley Davidson Seventy-Two Sportster 2013
Harley Davidson Seventy-Two Sportster 2015
Harley Davidson Seventy-Two Sportster 2014
Harley Davidson Forty-Eight Sportster 2010
Harley Davidson Forty-Eight Sportster 2016
Harley Davidson Forty-Eight Sportster 2017
Harley Davidson Forty-Eight Sportster 2015
Harley Davidson Forty-Eight Sportster 2017
Harley Davidson Sportster Forty-Eight Sportster 2018
Harley Davidson Sportster Sportster 2004
Harley Davidson Sportster Sportster 2006
Harley Davidson Sportster Sportster 2007
Harley Davidson Sportster Custom Sportster 2004
Harley Davidson Low Sportster 2008
Harley Davidson Super Low Sportster 2015
Harley Davidson Super Low Sportster 2016
Harley Davidson Iron Sportster 2009
Harley Davidson Iron Sportster 2011
Harley Davidson Iron Sportster 2012
Harley Davidson Iron Sportster 2014
Harley Davidson Iron Sportster 2015
Harley Davidson Iron Sportster 2016
Harley Davidson Sportster Iron Sportster 2018
Harley Davidson Roadster Sportster 2006
Harley Davidson Roadster Sportster 2008
Harley Davidson Roadster Sportster 2015
Harley Davidson 50th Anniversary Sportster 2007
Harley Davidson Sportster Sportster 1988
Harley Davidson Sportster Sportster 1989
Harley Davidson Sportster Sportster 1990
Harley Davidson Sportster Sportster 1991
Harley Davidson Sportster Sportster 1992
Harley Davidson Sportster Sportster 1993
Harley Davidson Sportster Sportster 1994
Harley Davidson Sportster Sportster 1995
Harley Davidson Sportster Sportster 1996
Harley Davidson Sportster Sportster 1997
Harley Davidson Sportster Sportster 1999
Harley Davidson Sportster Sportster 2002
Harley Davidson Sportster Hugger Sportster 1988
Harley Davidson Sportster Hugger Sportster 1989
Harley Davidson Sportster Hugger Sportster 1990
Harley Davidson Sportster Sportster 1991
Harley Davidson Sportster Hugger Sportster 1992
Harley Davidson Sportster Sportster 1993
Harley Davidson Sportster Hugger Sportster 1994
Harley Davidson Sportster Hugger Sportster 1995
Harley Davidson Sportster Hugger Sportster 1996
Harley Davidson Sportster Sportster 1997
Harley Davidson Sportster Hugger Sportster 1998
KTM FREERIDE 2012
KTM FREERIDE 2013
KTM FREERIDE 2014
KTM FREERIDE 2015
KTM FREERIDE 2016
KTM FREERIDE 2017