PROGRESSIVE SKU: T14-669154

Progressive 412 Shocks — Harley-Davidson

$454.95
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Progressive 412 Series shocks deliver reliable suspension performance with a durable double-wall steel body and nitrogen-charged, velocity-sensitive damping. The five-position preload adjuster lets you tune ride height and stiffness for your weight and riding style.

Features

  • Double-wall steel damper construction
  • High-pressure nitrogen gas charged
  • 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

  • Brand: Progressive
  • Manufacturer Part #: 412-4056C
  • Category: Suspension / Shocks and Struts
  • Weight: 11.15 lb
  • California Prop 65: Contains chemicals known to cause cancer and reproductive harm. Visit www.P65Warnings.ca.gov for more information.

Fitment

Fits Harley-Davidson models. Verify your specific year and model before ordering, as shock applications vary by chassis and rear suspension type.

Frequently Asked Questions

Can I adjust the ride height or stiffness?

Yes — the 5-position cam-style preload adjuster lets you dial in stiffness and height to match your weight and riding preferences.

What's the difference between Standard and Heavy-Duty springs?

Heavy-Duty springs are rated for heavier riders or two-up riding. Standard springs suit lighter riders. Choose based on your typical load.

Do these come with Show Chrome covers?

Show Chrome covers are optional on select applications. Check fitment details for your model to see if covers are available.

How do nitrogen-charged shocks differ from conventional shocks?

Gas-charged shocks maintain consistent damping under heat and repeated compression, preventing fade that can occur with non-pressurized designs.

California Proposition 65 Warning

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

BRANDProgressive
TYPEShocks and Struts
SKUT14-669154
WEIGHT11.15 lb
Please contact us to confirm fitment for your specific motorcycle, or check the product title for compatibility notes.
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✓ VERIFIED
Dec 25, 2025

Stiff

The shocks seem super nice, but they are incredibly stiff. Turns out they’re 130/200 top to bottom. Would be nice to have an option to choose your spring rate. Couldn’t find it in the description either. Have them installed on a 1998 sportster 1200 by the way. I’m about 180lbs and they don’t move at all, my friend who weighs about 260 also said they were way to firm. Hope this helps.

— Willie M