Progressive 412 Series shocks deliver smooth, consistent suspension performance with a double-wall steel body and high-pressure nitrogen charging. The five-position preload adjuster and multi-stage velocity-sensitive valving let you tune the ride for your weight and riding style without breaking the bank.
Features
- Double-wall steel construction
- High-pressure nitrogen gas charging
- Multi-stage velocity-sensitive damping
- 5-position cam-style preload adjuster
- Standard or Heavy-Duty progressive-rate spring options
- Chrome or black finish available
- Optional show chrome covers on select models
Specifications
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Brand: Progressive
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Manufacturer Part #: 412-4080B
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Category: Suspension / Shocks and Struts
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Weight: 9.4 lb
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WARNING: Cancer and Reproductive Harm — California Prop 65. www.P65Warnings.ca.gov
Fitment
Fits Harley-Davidson motorcycles. Verify the specific model-year compatibility before ordering, as shock mounting points vary across the Harley lineup.
Frequently Asked Questions
Can I adjust the preload myself?
Yes — the 5-position cam-style adjuster lets you dial preload up or down without tools. Rotate to match your weight and riding preference.
What's the difference between Standard and Heavy-Duty springs?
Heavy-Duty springs support more weight and rider aggression. Choose Standard for lighter loads, Heavy-Duty for passengers or aggressive riding.
Will these work with my Harley model?
Progressive 412s fit most Harley-Davidson models, but mount points vary. Confirm your specific year and model before purchasing.
Do these come with chrome covers?
Standard units ship without covers. Show chrome covers are available as an optional upgrade on select applications.
How do I maintain these shocks?
Periodically check for leaks or seepage. No user-serviceable parts inside — if a shock fails, contact Progressive for warranty service.
California Proposition 65 Warning
WARNING: Cancer and Reproductive Harm — California Prop 65 (Y). www.P65Warnings.ca.gov