Progressive 412 Series shocks deliver tunable suspension performance with a durable double-wall steel body and nitrogen-charged, multi-stage velocity-sensitive damping. The five-position cam preload adjuster lets you dial in ride comfort for any rider weight, while progressive-rate springs smooth out bumps without the harshness of conventional shocks.
Features
- Double-wall steel damper body
- High-pressure nitrogen charging
- Multi-stage velocity-sensitive damping
- 5-position cam-style preload adjuster
- Progressive-rate springs (standard or heavy-duty)
- Chrome or black finish options
- Optional Show Chrome covers on select models
Specifications
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Brand: Progressive
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Manufacturer Part #: 412-4036B
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Category: Suspension / Shocks and Struts
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Weight: 10.2 lb
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WARNING: Cancer and Reproductive Harm — California Prop 65. www.P65Warnings.ca.gov
Fitment
Fits Harley-Davidson models. Confirm exact fitment with your model year and model name before ordering, as applications vary.
Frequently Asked Questions
Can I adjust the preload on these shocks?
Yes — the 5-position cam-style adjuster lets you dial preload up or down to match your weight and riding style.
Are these shocks filled with oil or gas?
High-pressure nitrogen gas charging provides consistent damping performance and prevents fade under repeated hard braking or aggressive riding.
What's the difference between standard and heavy-duty springs?
Standard springs suit average-weight riders; heavy-duty springs support heavier riders or two-up loads without bottoming out.
Do these come with chrome covers?
Base kit ships without covers. Optional Show Chrome covers are available on select applications — check your model fitment.
How do I know if these will fit my Harley?
Progressive makes multiple 412 variants for different Harley platforms. Verify your model year and chassis (Touring, Softail, Cruiser, etc.) before ordering.
California Proposition 65 Warning
WARNING: Cancer and Reproductive Harm — California Prop 65 (Y). www.P65Warnings.ca.gov