Progressive 412 Series shocks deliver suspension tuning without the premium price tag, featuring double-wall steel construction with nitrogen-charged, multi-stage velocity-sensitive valving for smooth, consistent damping across the compression stroke. A five-position cam-style preload adjuster lets you dial in spring stiffness to match your weight and riding style.
Fits Harley-Davidson models. Confirm your specific year and model before ordering to ensure proper fitment.
Yes — the 5-position cam preload adjuster lets you dial spring stiffness to match your weight and riding preference.
Show chrome covers are optional on select models. Check your application — some come standard, others are sold separately.
Progressive springs get stiffer as they compress, suiting varied loads. Linear springs maintain consistent stiffness throughout. Choose based on your riding style and bike setup.
The double-wall steel construction and nitrogen charge are engineered for the life of your motorcycle with proper maintenance and preload adjustment.
No — these are sealed nitrogen-charged shocks. Installation is straightforward bolt-on replacement on most Harley models.
WARNING: Cancer and Reproductive Harm — California Prop 65 (Y). www.P65Warnings.ca.gov
| BRAND | Progressive |
| TYPE | Shocks and Struts |
| SKU | T14-669134 |
| WEIGHT | 10.6 lb |
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.
