Features the all new Frequency Sensing Technology (FST)

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  • Features the all new Frequency Sensing Technology (FST) which allows the shocks to sense the frequency of a bump and automatically adjust damping for superior ride quality
  • Deflective disc valving
  • Adjust spring pre-load by hand, no special tool needed
  • Includes a progressive rate spring and is high-pressure gas charged for consistent performance
  • Standard or heavy duty spring rate with a black or chrome finish
  • Sold in pairs
  • Made in the U.S.A.
Progressive Suspensions 444 Series FST

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: For OEM shock lengths, see the Quick Reference Guide in the back of the FatBook.

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

NOTE: Before purchasing or attempting to install shocks that are different than the OEM length, confirm that your wheel travel can be altered without causing clearance issues such as, swingarm/axle to exhaust contact as well as chain/belt guard or tire contact.

1310-0771   11" BLACK 444-4022B
1310-0772   11" CHROME 444-4022C


1984Harley-DavidsonDisc Glide - FXRDG 
1984 - 1985Harley-DavidsonLow Glide - FXRS 
1985Harley-DavidsonLow Glide Custom - FXRC 
1986 - 1993Harley-DavidsonLow Rider - FXRS 
1987Harley-DavidsonLow Rider Chrome - FXRC 
1990 - 1993Harley-DavidsonLow Rider Convertible - FXRS-CONV 
1987 - 1994Harley-DavidsonLow Rider Custom - FXLR 
1988 - 1993Harley-DavidsonLow Rider Sport - FXRS-SP 
1979 - 1985Harley-DavidsonRoadster - XLS 
1983 - 1993Harley-DavidsonSport Glide - FXRT 
1986Harley-DavidsonSport Glide Grand Touring - FXRD 
2002 - 2003Harley-DavidsonSportster - XL 883R 
1979Harley-DavidsonSportster - XLCH 1000 
1979 - 1985Harley-DavidsonSportster - XLH 1000 
1986 - 1987Harley-DavidsonSportster - XLH 1100 
1988 - 2003Harley-DavidsonSportster - XLH 1200 
1986 - 2003Harley-DavidsonSportster - XLH 883 
1983 - 1985Harley-DavidsonSportster - XLX 1000 
1983 - 1984Harley-DavidsonSportster - XR 1000 
1977 - 1978Harley-DavidsonSportster Cafe Racer - XLCR 1000 
1996 - 2003Harley-DavidsonSportster Custom - XL 1200C 
1986 - 1995Harley-DavidsonSportster Deluxe - XLH 883 
1987 - 2003Harley-DavidsonSportster Hugger - XLH 883 
1996 - 2003Harley-DavidsonSportster Sport - XL 1200S 
1984 - 1994Harley-DavidsonSuper Glide - FXR 
1982 - 1983Harley-DavidsonSuper Glide II - FXR 
1982 - 1983Harley-DavidsonSuper Glide II - FXRS 
  • Product Name:444 SERIES FXR-XL HEAVY DUTY
  • Product Reference: 1310-0771
  • By Progressive Suspension
  • Price: US$
  • Product Width: 0.00 in
  • Product Height: 0.00 in
  • Product Depth: 0.00 in
  • Product Weight: 7.30 lbs
  • Description: Features the all new Frequency Sensing Technology (FST)

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