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 consistent damping performance across all riding conditions. Featuring a durable double-wall steel body and nitrogen-charged, multi-stage velocity-sensitive valving, these shocks are built to perform. The five-position cam preload adjuster lets you tune for your weight and riding style, making them a versatile upgrade for Harley-Davidson motorcycles.
When you're looking to upgrade your Harley-Davidson's suspension, the Progressive 412 Series shocks offer a significant improvement over stock. Riders chasing better control and a smoother experience on the open road will appreciate the engineering that goes into these units. They're designed to handle the varied demands of V-twin riding, from solo cruises to two-up touring.
Achieving the right feel from your suspension is crucial for long rides and spirited runs. The 412 Series shocks simplify this with their accessible preload adjustment, allowing you to quickly adapt to changing loads or preferences. Whether you're upgrading from worn-out factory shocks or looking for a more personalized setup, these shocks provide a solid foundation for improved handling and comfort on your Harley-Davidson.
Can I adjust these shocks to fit my riding weight?
Yes, the five-position cam preload adjuster allows you to dial in spring preload for light, medium, or heavy riders, or when carrying a passenger and gear.
Will these shocks improve my ride quality over stock?
The Progressive 412 Series shocks are designed to offer improved damping and adjustability, which typically translates to a more controlled and comfortable ride compared to factory suspension.
Do I need special tools for installation?
Installation generally requires basic hand tools. We recommend consulting a service manual for your specific Harley-Davidson model or seeking professional installation.
| BRAND | Progressive |
| TYPE | Shocks and Struts |
| SKU | T14-669177 |
| 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.
