Progressive 412 Series shocks deliver smooth, consistent damping through a double-wall steel body and multi-stage velocity-sensitive valving, backed by nitrogen gas charging for long-term performance. The five-position cam preload adjuster lets you fine-tune suspension for your weight and riding style without tools.
Features
- Double-wall steel damper construction
- Multi-stage velocity-sensitive valving
- High-pressure nitrogen gas charged
- 5-position cam-style preload adjuster
- Available in standard or heavy-duty progressive springs
- 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 #: 412-4042B
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Category: Suspension / Shocks and Struts
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Weight: 11.92 lb
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California Prop 65 Warning: Contains chemicals known to cause cancer and reproductive harm — www.P65Warnings.ca.gov
Fitment
Fits Harley-Davidson models. Verify your specific year and model before ordering to ensure correct shock length and mounting.
Frequently Asked Questions
Can I adjust these shocks without tools?
Yes. The 5-position cam-style preload adjuster lets you change ride height and firmness by hand in seconds.
What's the difference between standard and heavy-duty springs?
Standard springs are tuned for typical rider weight; heavy-duty springs provide stiffer support for heavier riders or carrying passengers and luggage.
Will these shocks improve my ride quality?
Yes. The nitrogen gas charging and multi-stage damping provide consistent, smooth suspension performance compared to worn factory shocks.
Are show chrome covers included?
Optional on select applications — confirm availability for your specific Harley model. Order separately if not included with your shocks.
California Proposition 65 Warning
WARNING: Cancer and Reproductive Harm — California Prop 65 (Y). www.P65Warnings.ca.gov