View our Specials! Coupon Code: SaveIn2026
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Our suspension system for the venerable Softail style chassis is exclusively available as an adjustable ride height version. Progressive Suspension was the first to introduce aftermarket shocks for the most popular frame design ever produced and we continue to refine our work. Two inches of ride height adjustment as well as adjustable for spring preload to accommodate varying loads and rider weights, all wrapped in a chrome shroud and now available in a HEAVY DUTY version for two-up or heavily loaded bikes!
Features:| Years | Make | Model | Trim | ||
|---|---|---|---|---|---|
| 1989 - 1990 | Harley-Davidson | FLST Heritage Softail | Base | ||
| 1989 - 1999 | Harley-Davidson | FLSTC Heritage Softail Classic | Base | ||
| 1990 - 1999 | Harley-Davidson | FLSTF Fat Boy | Base | ||
| 1994 - 1996 | Harley-Davidson | FLSTN Heritage Softail Special | Base | ||
| 1997 - 1999 | Harley-Davidson | FLSTS Heritage Springer | Base | ||
| 1989 - 1999 | Harley-Davidson | FXST Softail Standard | Base | ||
| 1999 - 1999 | Harley-Davidson | FXSTB Night Train | Base | ||
| 1989 - 1999 | Harley-Davidson | FXSTC Softail Custom | Base | ||
| 1989 - 1999 | Harley-Davidson | FXSTS Springer Softail | Base | ||
| 1995 - 1997 | Harley-Davidson | FXSTSB Bad Boy | Base |
WARNING: Cancer & Reproductive Harm www.p65warnings.ca.govFor more information on Progressive part number 422-4001C, you can visit the official Progressive website.
