Progressive 412 Series shocks deliver consistent damping performance for Harley-Davidson riders at a straightforward price point. Built with double-wall steel construction and nitrogen-charged, multi-stage velocity-sensitive valving to smooth out bumps while maintaining durability across thousands of miles.
Features
- Double-wall steel damper body
- High-pressure nitrogen gas charging
- Multi-stage velocity-sensitive damping
- 5-position cam-style preload adjuster
- Standard or Heavy-Duty progressive-rate 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 #: 412-4043C
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Weight: 12.4 lb
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Category: Suspension / Shocks and Struts
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WARNING: Cancer and Reproductive Harm — California Prop 65. www.P65Warnings.ca.gov
Fitment
Fits Harley-Davidson models. Confirm your specific year and model before ordering to ensure correct application.
Frequently Asked Questions
Can I adjust the preload on these shocks?
Yes — the 5-position cam-style preload adjuster lets you dial in firmness for light or heavy riders without tools.
What's the difference between Standard and Heavy-Duty springs?
Heavy-Duty springs support more load and deliver firmer control for larger riders or two-up touring; Standard springs work for average-weight riders.
Do these come with chrome covers?
Standard 412s ship without covers. Show chrome covers are optional on select applications — check fitment details for your model.
How do the nitrogen charge and velocity sensing work together?
Nitrogen keeps damping consistent across temperature swings, while multi-stage valving adjusts resistance based on suspension speed for smooth, predictable handling.
Will these fit my Harley?
Progressive 412s fit most Harley-Davidson models, but confirm your specific year and model number before ordering for correct application.
California Proposition 65 Warning
WARNING: Cancer and Reproductive Harm — California Prop 65 (Y). www.P65Warnings.ca.gov