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 deliver suspension tuning at an entry-level price point, offering a simple, durable design that improves ride quality over stock. The double-wall steel damper body with a nitrogen charge and multi-stage velocity-sensitive valving provides consistent damping. A five-position preload adjuster lets you dial in comfort for your weight and riding style.
For Harley-Davidson riders looking to step up their suspension game without breaking the bank, the Progressive 412 Series shocks are an excellent choice. These shocks are engineered to provide a noticeable improvement in comfort and control, making your daily commute or long-distance tour more enjoyable. The robust construction ensures they can stand up to the rigors of the road.
The ability to fine-tune your suspension is a key advantage of the 412 Series. The intuitive five-position preload adjuster makes it simple to adapt your bike's ride characteristics to your specific needs, whether you're riding solo, with a passenger, or loaded down with gear. This adjustability ensures that you get the most out of every mile on your Harley-Davidson.
What is the preload adjuster and how do I use it?
The five-position cam-style preload adjuster allows you to compress the spring, increasing stiffness to accommodate different rider weights, passengers, or cargo. You typically use a spanner wrench to rotate the cam.
Are these shocks available in different finishes?
Yes, these shocks are available with either a chrome or black finish, allowing you to match your bike's aesthetic.
Will these shocks fit my Harley-Davidson?
Progressive 412 Series shocks are designed for various Harley-Davidson models. Please use our Shop by Bike tool or consult the manufacturer's fitment chart for your specific year and model to ensure compatibility.
| 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.
