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Progressive Suspension Chrome Heavy Duty 444 Series Shocks - 115/155 Spring Rate (lbs/in) - 444-4011C

  • Part #: 584458
  • Manufacturer Part #: 444-4011C

MSRP Price: $669.95

Our Price: $602.96

You Save:
$66.99 (10%)
1 on Hand

Overview of Progressive Suspension Chrome Heavy Duty 444 Series Shocks - 115/155 Spring Rate (lbs/in) - 444-4011C

  • Uses the all new Frequency Sensing Technology (FST)
  • Allows the shocks to sense the frequency of a bump and automatically adjust damping for superior ride quality
  • Deflective disc valving
  • You no longer need special tools to adjust, simply adjust the spring pre-load by hand
  • High-pressure gas charged with a progressive rate spring creates a consistent performance
  • Sold in pairs
  • Made in the U.S.A.


NOTE: A shock which is slightly longer than stock may alter the head angle slightly and provide somewhat quicker steering.

NOTE: A shock which is slightly shorter than stock may slightly alter the head angle and provide somewhat slower steering.

NOTE: Heavy Duty Applications are recommended for bikes that are operated at or near the manufacturer's maximum load rating over 50% of the time.

Included Items:
(2) Black Shocks with chrome springs
(4) Shouldered 1/2" sleeves
(4) Inner 3/8" sleeves
(4) Washers 1/2"
(4) Spacers

Specs for Progressive Suspension Chrome Heavy Duty 444 Series Shocks - 115/155 Spring Rate (lbs/in) - 444-4011C

Finish Chrome
Length - Shock 11 1/2 in.
Type - Shock Absorbers/Struts Shock Absorber
Units Pair
Weight 7.40 lbs

Specs for Progressive Suspension Chrome Heavy Duty 444 Series Shocks - 115/155 Spring Rate (lbs/in) - 444-4011C

Finish Chrome
Length - Shock 11 1/2 in.
Type - Shock Absorbers/Struts Shock Absorber
Units Pair
Weight 7.40 lbs

Fitment for Progressive Suspension Chrome Heavy Duty 444 Series Shocks - 115/155 Spring Rate (lbs/in) - 444-4011C

See if this part fits your ride

Part 584458 fits the following machines

Harley-Davidson
  • 1985 Harley-Davidson Electra Glide - FLH
  • 1984 Harley-Davidson Electra Glide - FLH
  • 1987 Harley-Davidson Electra Glide - FLHT
  • 1986 Harley-Davidson Electra Glide - FLHT
  • 1985 Harley-Davidson Electra Glide - FLHT
  • 1984 Harley-Davidson Electra Glide - FLHT
  • 2005 Harley-Davidson Electra Glide Classic - FLHTC
  • 2004 Harley-Davidson Electra Glide Classic - FLHTC
  • 2003 Harley-Davidson Electra Glide Classic - FLHTC
  • 2002 Harley-Davidson Electra Glide Classic - FLHTC
  • 2001 Harley-Davidson Electra Glide Classic - FLHTC
  • 2000 Harley-Davidson Electra Glide Classic - FLHTC
  • 1999 Harley-Davidson Electra Glide Classic - FLHTC
  • 1998 Harley-Davidson Electra Glide Classic - FLHTC
  • 1997 Harley-Davidson Electra Glide Classic - FLHTC
  • 1996 Harley-Davidson Electra Glide Classic - FLHTC
  • 1995 Harley-Davidson Electra Glide Classic - FLHTC
  • 1994 Harley-Davidson Electra Glide Classic - FLHTC
  • 1993 Harley-Davidson Electra Glide Classic - FLHTC
  • 1992 Harley-Davidson Electra Glide Classic - FLHTC
  • 1991 Harley-Davidson Electra Glide Classic - FLHTC
  • 1990 Harley-Davidson Electra Glide Classic - FLHTC
  • 1989 Harley-Davidson Electra Glide Classic - FLHTC
  • 1988 Harley-Davidson Electra Glide Classic - FLHTC
  • 1987 Harley-Davidson Electra Glide Classic - FLHTC
  • 1986 Harley-Davidson Electra Glide Classic - FLHTC
  • 1985 Harley-Davidson Electra Glide Classic - FLHTC
  • 1984 Harley-Davidson Electra Glide Classic - FLHTC
  • 2005 Harley-Davidson Electra Glide Classic Injected - FLHTC I
  • 2004 Harley-Davidson Electra Glide Classic Injected - FLHTC I
  • 2003 Harley-Davidson Electra Glide Classic Injected - FLHTC I
  • 2002 Harley-Davidson Electra Glide Classic Injected - FLHTC I
  • 2001 Harley-Davidson Electra Glide Classic Injected - FLHTC I
  • 2000 Harley-Davidson Electra Glide Classic Injected - FLHTC I
  • 1999 Harley-Davidson Electra Glide Classic Injected - FLHTC I
  • 1998 Harley-Davidson Electra Glide Classic Injected - FLHTC I
  • 1997 Harley-Davidson Electra Glide Classic Injected - FLHTC I
  • 1996 Harley-Davidson Electra Glide Classic Injected - FLHTC I
  • 1985 Harley-Davidson Electra Glide Special - FLHX
  • 1984 Harley-Davidson Electra Glide Special - FLHX
  • 1993 Harley-Davidson Electra Glide Sport - FLHS
  • 1992 Harley-Davidson Electra Glide Sport - FLHS
  • 1991 Harley-Davidson Electra Glide Sport - FLHS
  • 1990 Harley-Davidson Electra Glide Sport - FLHS
  • 1989 Harley-Davidson Electra Glide Sport - FLHS
  • 1988 Harley-Davidson Electra Glide Sport - FLHS
  • 1987 Harley-Davidson Electra Glide Sport - FLHS
  • 1984 Harley-Davidson Electra Glide Sport - FLHS
  • 2005 Harley-Davidson Electra Glide Standard - FLHT
  • 2004 Harley-Davidson Electra Glide Standard - FLHT
  • 2003 Harley-Davidson Electra Glide Standard - FLHT
  • 2002 Harley-Davidson Electra Glide Standard - FLHT
  • 2001 Harley-Davidson Electra Glide Standard - FLHT
  • 2000 Harley-Davidson Electra Glide Standard - FLHT
  • 1999 Harley-Davidson Electra Glide Standard - FLHT
  • 1998 Harley-Davidson Electra Glide Standard - FLHT
  • 1997 Harley-Davidson Electra Glide Standard - FLHT
  • 1996 Harley-Davidson Electra Glide Standard - FLHT
  • 1995 Harley-Davidson Electra Glide Standard - FLHT
  • 2005 Harley-Davidson Electra Glide Standard Injected - FLHT I
  • 2004 Harley-Davidson Electra Glide Standard Injected - FLHT I
  • 2003 Harley-Davidson Electra Glide Standard Injected - FLHT I
  • 1999 Harley-Davidson Electra Glide Ultra Classic - FLHTCU
  • 1998 Harley-Davidson Electra Glide Ultra Classic - FLHTCU
  • 1997 Harley-Davidson Electra Glide Ultra Classic - FLHTCU
  • 1996 Harley-Davidson Electra Glide Ultra Classic - FLHTCU
  • 1995 Harley-Davidson Electra Glide Ultra Classic - FLHTCU
  • 1994 Harley-Davidson Electra Glide Ultra Classic - FLHTCU
  • 1993 Harley-Davidson Electra Glide Ultra Classic - FLHTCU
  • 1992 Harley-Davidson Electra Glide Ultra Classic - FLHTCU
  • 1991 Harley-Davidson Electra Glide Ultra Classic - FLHTCU
  • 1990 Harley-Davidson Electra Glide Ultra Classic - FLHTCU
  • 1989 Harley-Davidson Electra Glide Ultra Classic - FLHTCU
  • 2005 Harley-Davidson Electra Glide Ultra Classic Injected - FLHTCU I
  • 2004 Harley-Davidson Electra Glide Ultra Classic Injected - FLHTCU I
  • 2003 Harley-Davidson Electra Glide Ultra Classic Injected - FLHTCU I
  • 2002 Harley-Davidson Electra Glide Ultra Classic Injected - FLHTCU I
  • 2001 Harley-Davidson Electra Glide Ultra Classic Injected - FLHTCU I
  • 2000 Harley-Davidson Electra Glide Ultra Classic Injected - FLHTCU I
  • 1999 Harley-Davidson Electra Glide Ultra Classic Injected - FLHTCU I
  • 1998 Harley-Davidson Electra Glide Ultra Classic Injected - FLHTCU I
  • 1997 Harley-Davidson Electra Glide Ultra Classic Injected - FLHTCU I
  • 1996 Harley-Davidson Electra Glide Ultra Classic Injected - FLHTCU I
  • 1995 Harley-Davidson Electra Glide Ultra Classic Injected - FLHTCU I
  • 2002 Harley-Davidson Road Glide - FLTR
  • 2001 Harley-Davidson Road Glide - FLTR
  • 2000 Harley-Davidson Road Glide - FLTR
  • 1999 Harley-Davidson Road Glide - FLTR
  • 1998 Harley-Davidson Road Glide - FLTR
  • 2005 Harley-Davidson Road Glide Injected - FLTR I
  • 2004 Harley-Davidson Road Glide Injected - FLTR I
  • 2003 Harley-Davidson Road Glide Injected - FLTR I
  • 2002 Harley-Davidson Road Glide Injected - FLTR I
  • 2001 Harley-Davidson Road Glide Injected - FLTR I
  • 2000 Harley-Davidson Road Glide Injected - FLTR I
  • 1999 Harley-Davidson Road Glide Injected - FLTR I
  • 1998 Harley-Davidson Road Glide Injected - FLTR I
  • 2005 Harley-Davidson Road King - FLHR
  • 2004 Harley-Davidson Road King - FLHR
  • 2003 Harley-Davidson Road King - FLHR
  • 2002 Harley-Davidson Road King - FLHR
  • 2001 Harley-Davidson Road King - FLHR
  • 2000 Harley-Davidson Road King - FLHR
  • 1999 Harley-Davidson Road King - FLHR
  • 1998 Harley-Davidson Road King - FLHR
  • 1997 Harley-Davidson Road King - FLHR
  • 1996 Harley-Davidson Road King - FLHR
  • 1995 Harley-Davidson Road King - FLHR
  • 1994 Harley-Davidson Road King - FLHR
  • 2005 Harley-Davidson Road King Classic Injected - FLHRC I
  • 2004 Harley-Davidson Road King Classic Injected - FLHRC I
  • 2003 Harley-Davidson Road King Classic Injected - FLHRC I
  • 2002 Harley-Davidson Road King Classic Injected - FLHRC I
  • 2001 Harley-Davidson Road King Classic Injected - FLHRC I
  • 2000 Harley-Davidson Road King Classic Injected - FLHRC I
  • 1999 Harley-Davidson Road King Classic Injected - FLHRC I
  • 1998 Harley-Davidson Road King Classic Injected - FLHRC I
  • 2005 Harley-Davidson Road King Custom - FLHRS
  • 2004 Harley-Davidson Road King Custom - FLHRS
  • 2005 Harley-Davidson Road King Custom Injected - FLHRS I
  • 2004 Harley-Davidson Road King Custom Injected - FLHRS I
  • 2005 Harley-Davidson Road King Injected - FLHR I
  • 2004 Harley-Davidson Road King Injected - FLHR I
  • 2003 Harley-Davidson Road King Injected - FLHR I
  • 2002 Harley-Davidson Road King Injected - FLHR I
  • 2001 Harley-Davidson Road King Injected - FLHR I
  • 2000 Harley-Davidson Road King Injected - FLHR I
  • 1999 Harley-Davidson Road King Injected - FLHR I
  • 1998 Harley-Davidson Road King Injected - FLHR I
  • 1997 Harley-Davidson Road King Injected - FLHR I
  • 1996 Harley-Davidson Road King Injected - FLHR I
  • 2003 Harley-Davidson Sportster - XL 883R
  • 2002 Harley-Davidson Sportster - XL 883R
  • 1987 Harley-Davidson Sportster - XLH 1100
  • 1986 Harley-Davidson Sportster - XLH 1100
  • 2003 Harley-Davidson Sportster - XLH 1200
  • 2002 Harley-Davidson Sportster - XLH 1200
  • 2001 Harley-Davidson Sportster - XLH 1200
  • 2000 Harley-Davidson Sportster - XLH 1200
  • 1999 Harley-Davidson Sportster - XLH 1200
  • 1998 Harley-Davidson Sportster - XLH 1200
  • 1997 Harley-Davidson Sportster - XLH 1200
  • 1996 Harley-Davidson Sportster - XLH 1200
  • 1995 Harley-Davidson Sportster - XLH 1200
  • 1994 Harley-Davidson Sportster - XLH 1200
  • 1993 Harley-Davidson Sportster - XLH 1200
  • 1992 Harley-Davidson Sportster - XLH 1200
  • 1991 Harley-Davidson Sportster - XLH 1200
  • 1990 Harley-Davidson Sportster - XLH 1200
  • 1989 Harley-Davidson Sportster - XLH 1200
  • 1988 Harley-Davidson Sportster - XLH 1200
  • 2003 Harley-Davidson Sportster - XLH 883
  • 2002 Harley-Davidson Sportster - XLH 883
  • 2001 Harley-Davidson Sportster - XLH 883
  • 2000 Harley-Davidson Sportster - XLH 883
  • 1999 Harley-Davidson Sportster - XLH 883
  • 1998 Harley-Davidson Sportster - XLH 883
  • 1997 Harley-Davidson Sportster - XLH 883
  • 1996 Harley-Davidson Sportster - XLH 883
  • 1995 Harley-Davidson Sportster - XLH 883
  • 1994 Harley-Davidson Sportster - XLH 883
  • 1993 Harley-Davidson Sportster - XLH 883
  • 1992 Harley-Davidson Sportster - XLH 883
  • 1991 Harley-Davidson Sportster - XLH 883
  • 1990 Harley-Davidson Sportster - XLH 883
  • 1989 Harley-Davidson Sportster - XLH 883
  • 1988 Harley-Davidson Sportster - XLH 883
  • 1987 Harley-Davidson Sportster - XLH 883
  • 1986 Harley-Davidson Sportster - XLH 883
  • 2003 Harley-Davidson Sportster Custom - XL 1200C
  • 2002 Harley-Davidson Sportster Custom - XL 1200C
  • 2001 Harley-Davidson Sportster Custom - XL 1200C
  • 2000 Harley-Davidson Sportster Custom - XL 1200C
  • 1999 Harley-Davidson Sportster Custom - XL 1200C
  • 1998 Harley-Davidson Sportster Custom - XL 1200C
  • 1997 Harley-Davidson Sportster Custom - XL 1200C
  • 1996 Harley-Davidson Sportster Custom - XL 1200C
  • 2003 Harley-Davidson Sportster Custom - XL 883C
  • 2002 Harley-Davidson Sportster Custom - XL 883C
  • 2001 Harley-Davidson Sportster Custom - XL 883C
  • 2000 Harley-Davidson Sportster Custom - XL 883C
  • 1999 Harley-Davidson Sportster Custom - XL 883C
  • 2003 Harley-Davidson Sportster Hugger - XLH 883
  • 2002 Harley-Davidson Sportster Hugger - XLH 883
  • 2001 Harley-Davidson Sportster Hugger - XLH 883
  • 2000 Harley-Davidson Sportster Hugger - XLH 883
  • 1999 Harley-Davidson Sportster Hugger - XLH 883
  • 1998 Harley-Davidson Sportster Hugger - XLH 883
  • 1997 Harley-Davidson Sportster Hugger - XLH 883
  • 1996 Harley-Davidson Sportster Hugger - XLH 883
  • 1995 Harley-Davidson Sportster Hugger - XLH 883
  • 1994 Harley-Davidson Sportster Hugger - XLH 883
  • 1993 Harley-Davidson Sportster Hugger - XLH 883
  • 1992 Harley-Davidson Sportster Hugger - XLH 883
  • 1991 Harley-Davidson Sportster Hugger - XLH 883
  • 1990 Harley-Davidson Sportster Hugger - XLH 883
  • 1989 Harley-Davidson Sportster Hugger - XLH 883
  • 1988 Harley-Davidson Sportster Hugger - XLH 883
  • 1987 Harley-Davidson Sportster Hugger - XLH 883
  • 2003 Harley-Davidson Sportster Sport - XL 1200S
  • 2002 Harley-Davidson Sportster Sport - XL 1200S
  • 2001 Harley-Davidson Sportster Sport - XL 1200S
  • 2000 Harley-Davidson Sportster Sport - XL 1200S
  • 1999 Harley-Davidson Sportster Sport - XL 1200S
  • 1998 Harley-Davidson Sportster Sport - XL 1200S
  • 1997 Harley-Davidson Sportster Sport - XL 1200S
  • 1996 Harley-Davidson Sportster Sport - XL 1200S
  • 1994 Harley-Davidson Super Glide - FXR
  • 1993 Harley-Davidson Super Glide - FXR
  • 1992 Harley-Davidson Super Glide - FXR
  • 1991 Harley-Davidson Super Glide - FXR
  • 1990 Harley-Davidson Super Glide - FXR
  • 1989 Harley-Davidson Super Glide - FXR
  • 1988 Harley-Davidson Super Glide - FXR
  • 1987 Harley-Davidson Super Glide - FXR
  • 1994 Harley-Davidson Tour Glide Classic - FLTC
  • 1993 Harley-Davidson Tour Glide Classic - FLTC
  • 1992 Harley-Davidson Tour Glide Classic - FLTC
  • 1991 Harley-Davidson Tour Glide Classic - FLTC
  • 1990 Harley-Davidson Tour Glide Classic - FLTC
  • 1989 Harley-Davidson Tour Glide Classic - FLTC
  • 1988 Harley-Davidson Tour Glide Classic - FLTC
  • 1987 Harley-Davidson Tour Glide Classic - FLTC
  • 1986 Harley-Davidson Tour Glide Classic - FLTC
  • 1985 Harley-Davidson Tour Glide Classic - FLTC
  • 1984 Harley-Davidson Tour Glide Classic - FLTC
  • 1995 Harley-Davidson Tour Glide Ultra Classic - FLTCU
  • 1994 Harley-Davidson Tour Glide Ultra Classic - FLTCU
  • 1993 Harley-Davidson Tour Glide Ultra Classic - FLTCU
  • 1992 Harley-Davidson Tour Glide Ultra Classic - FLTCU
  • 1991 Harley-Davidson Tour Glide Ultra Classic - FLTCU
  • 1990 Harley-Davidson Tour Glide Ultra Classic - FLTCU
  • 1989 Harley-Davidson Tour Glide Ultra Classic - FLTCU
  • 1996 Harley-Davidson Tour Glide Ultra Classic Injected - FLTCU I
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Instructions and Manuals for Progressive Suspension Chrome Heavy Duty 444 Series Shocks - 115/155 Spring Rate (lbs/in) - 444-4011C

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