Progressive 412 Series shocks deliver suspension tuning at entry-level pricing with a simple, durable design that improves ride quality over stock. Double-wall steel damper body with nitrogen charge and multi-stage velocity-sensitive valving provides consistent damping, while a five-position preload adjuster lets you dial comfort for your weight and riding style.
Fits Harley-Davidson models. Confirm your specific year and model before ordering to ensure compatibility with the correct mounting geometry.
The 5-position cam lets you adjust spring preload to match your weight and preference. Stiffer settings work for heavier riders; softer settings suit lighter riders.
Yes — Progressive offers both standard and heavy-duty progressive rate springs depending on your riding weight and desired stiffness.
Yes — the 412 Series is street-legal and does not require special tuning or modifications to your motorcycle.
Standard models do not include Show Chrome covers. Optional full chrome covers are available on select applications — verify fitment for your model before ordering.
Nitrogen-charged shocks are sealed and maintenance-free. Monitor ride quality over time; if damping degrades after years of use, they can be serviced or replaced.
WARNING: Cancer and Reproductive Harm — California Prop 65 (Y). www.P65Warnings.ca.gov
| BRAND | Progressive |
| TYPE | Shocks and Struts |
| SKU | T14-669178 |
| WEIGHT | 10.2 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.
