Progressive 412 Shocks — Harley-Davidson

Progressive 412 Series shocks deliver suspension performance and adjustability at an excellent value, with a durable double-wall steel body and multi-stage velocity-sensitive damping that keeps your ride smooth over rough pavement and bumps. Five-position preload adjustment lets you tune the bike to your weight and riding style, while nitrogen gas charging maintains consistent damping throughout the suspension travel.

Features

• Double-wall steel damper construction
• Multi-stage velocity-sensitive damping
• High-pressure nitrogen gas charged
• 5-position cam-style preload adjuster
• Progressive or heavy-duty spring rates available
• Chrome or black finish options
• Optional show chrome covers on select models

Specifications

• Brand: Progressive
• Manufacturer Part #: 412-4007B
• Category: Suspension / Shocks and Struts
• Weight: 9.8 lb
• California Prop 65 Warning: Yes — contains materials 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 confirm spring rate and fitment.

Frequently Asked Questions

How do I adjust the preload on these shocks?

Five-position cam-style adjuster lets you change preload by hand without tools. Rotate to match your weight and load.

What's the difference between standard and heavy-duty springs?

Standard springs suit lighter riders; heavy-duty springs support heavier weight and cargo without bottoming out.

Can I get these in chrome, or are they black only?

Both chrome and black finishes are available. Optional show chrome covers are also offered on select applications.

Will these improve my bike's handling?

Yes — the multi-stage velocity-sensitive valving and nitrogen charging deliver smoother, more consistent damping than OEM shocks across varying road conditions.

California Proposition 65 Warning

WARNING: Cancer and Reproductive Harm — California Prop 65 (Y). www.P65Warnings.ca.gov