Progressive 412 Series shocks deliver reliable suspension performance with a durable double-wall steel body and nitrogen-charged, multi-stage velocity-sensitive valving. A five-position cam-style preload adjuster lets you tune the ride for your weight and riding style, and optional Show Chrome covers are available on select applications.
Features
Double-wall steel construction
High-pressure nitrogen gas charged
Multi-stage velocity-sensitive damping
5-position cam preload adjuster
Progressive or heavy-duty spring rates available
Chrome or black finish options
Specifications
Brand: Progressive
Manufacturer Part #: 412-4073B
Category: Suspension / Shocks and Struts
Weight: 10 lb
WARNING: Cancer and Reproductive Harm — California Prop 65. www.P65Warnings.ca.gov
Fitment
Fits Harley-Davidson models. Verify specific model year compatibility before ordering.
Frequently Asked Questions
Can I adjust the ride feel after installation?
Yes — the 5-position cam preload adjuster lets you dial in stiffness to match your weight and riding preference.
What's the difference between standard and heavy-duty springs?
Standard springs suit lighter riders; heavy-duty springs are designed for heavier riders or two-up touring to prevent sagging under load.
Are Show Chrome covers included?
Show Chrome covers are sold separately on select applications. Check fitment details for your specific model.
How do the nitrogen gas and valving improve performance?
High-pressure nitrogen maintains consistent damping over time and temperature swings. Multi-stage valving adjusts resistance smoothly across the full range of suspension movement.
California Proposition 65 Warning
WARNING: Cancer and Reproductive Harm — California Prop 65 (Y). www.P65Warnings.ca.gov
BRAND
Progressive
TYPE
Shocks and Struts
SKU
T14-669174
WEIGHT
10.0 lb
Please contact us to confirm fitment for your specific motorcycle, or check the product title for compatibility notes.
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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.
Progressive 412 Shocks — Harley-D...
$379.95
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