Progressive Suspension has focused exclusively on American V-twin suspension since 1982, and its Monotube fork cartridges and 400/970/970G shock series are among the most common upgrades on baggers and Softails. For most riders the stock rear shock is the single worst part on the bike — this is the fix.
Progressive 412 Series shocks for Harley-Davidson motorcycles deliver smooth, consistent damping through a double-wall steel body with nitrogen-charged, multi-stage velocity-sensitive valving. Five-position preload adjustment lets riders dial in stiffness for light or heavy loading without swapping springs, ensuring an optimized ride for any situation.
Transform your Harley-Davidson's ride quality with the Progressive 412 Series shocks. These performance-oriented shocks are engineered to provide a significant improvement over factory suspension, offering superior control and comfort. The robust design and advanced internal components work in harmony to absorb road imperfections, reduce bottoming out, and maintain tire contact for a more confident and enjoyable riding experience.
The beauty of the Progressive 412 Series shocks lies in their adjustability. The intuitive 5-position cam-style preload adjuster allows you to quickly and easily modify the shock's stiffness, whether you're riding solo, with a passenger, or carrying extra gear. This means you can always achieve the ideal balance of comfort and performance, tailoring your Harley-Davidson's suspension to your exact needs on the fly.
Can I adjust the ride height or stiffness?
Yes, the 5-position cam-style preload adjuster lets you dial in firmness without changing springs, effectively adjusting stiffness.
Are these shocks a direct replacement for my stock units?
Yes, these shocks are designed to be a direct bolt-on replacement for many Harley-Davidson models, simplifying the upgrade process.
Will I need to perform any modifications for installation?
For most applications, the Progressive 412 Series shocks are a straightforward bolt-on installation without requiring significant modifications. Always confirm fitment for your specific model.
| BRAND | Progressive |
| TYPE | Shocks and Struts |
| SKU | T14-669175 |
| WEIGHT | 10.3 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.
