The Progressive Suspension 412 Series shocks are simply the best value shock on the market today. The 412's simple, durable design means they will be an improvement to your motorcycle's suspension performance for as long as you are riding it. The412 Series
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The Progressive Suspension 412 Series shocks are simply the best value shock on the market today. The 412’s simple, durable design means they will be an improvement to your motorcycle’s suspension performance for as long as you are riding it. The412 Series steel spring shocks are nitrogen gas-charged with multi-stage automatic valving and an adjustable spring pre-load, proven under extensive testing and easily installed. These shocks fit Shovelhead FX and FL models and early Evolution FX models. Years below.
| YEAR | MAKE | MODEL |
|---|---|---|
| 1979 – 1980 | Harley-Davidson | 1200 Fat Bob – FXEF |
| 1977 – 1979 | Harley-Davidson | 1200 Low Rider – FXS |
| 1973 – 1978 | Harley-Davidson | 1200 Super Glide – FX |
| 1973 – 1980 | Harley-Davidson | 1200 Super Glide – FXE |
| 1978 – 1984 | Harley-Davidson | 80 Electra Glide – FLH |
| 1981 | Harley-Davidson | 80 Electra Glide Heritage – FLH |
| 1979 – 1981 | Harley-Davidson | 80 Fat Bob – FXEF |
| 1985 | Harley-Davidson | 80 Fat Bob – FXEF |
| 1979 – 1982 | Harley-Davidson | 80 Low Rider – FXS |
| 1983 – 1985 | Harley-Davidson | 80 Low Rider – FXSB |
| 1980 – 1982 | Harley-Davidson | 80 Sturgis – FXB |
| 1979 – 1984 | Harley-Davidson | 80 Super Glide – FXE |
| 1980 – 1984 | Harley-Davidson | 80 Wide Glide – FXWG |
| 1983 | Harley-Davidson | Disc Glide – FXDG |
| 1973 – 1980 | Harley-Davidson | Electra Glide – FL |
| 1973 – 1984 | Harley-Davidson | Electra Glide – FLH |
| 1977 | Harley-Davidson | Electra Glide – FLHS |
| 1980 – 1981 | Harley-Davidson | Electra Glide – FLHS |
| 1977 – 1981 | Harley-Davidson | Electra Glide Classic – FLH 1200 |
| 1979 – 1984 | Harley-Davidson | Electra Glide Classic – FLH 80 |
| 1984 | Harley-Davidson | Electra Glide Special – FLHX |
| 1982 – 1984 | Harley-Davidson | Electra Glide Sport – FLHS |
| 1985 – 1986 | Harley-Davidson | Wide Glide – FXWG |
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