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.
The Progressive 412 Series shocks deliver smooth, consistent suspension performance for your Harley-Davidson. Designed with a robust double-wall steel body and high-pressure nitrogen charging, these shocks are built to provide a controlled and comfortable ride. They offer a significant upgrade, allowing you to tune the ride for your weight and riding style.
Upgrade your Harley-Davidson's ride with the renowned performance of Progressive 412 Series shocks. These shocks feature a durable double-wall steel construction and are charged with high-pressure nitrogen gas to ensure consistent damping across all types of terrain. The multi-stage velocity-sensitive valving intelligently reacts to road imperfections, providing a smoother, more stable ride and reducing rider fatigue on long hauls.
The 412 Series shocks are designed to give you precise control over your ride. With the convenient 5-position cam-style preload adjuster, you can quickly adjust the suspension to accommodate different loads, whether you're riding solo, two-up, or with luggage. Choose between standard or heavy-duty progressive-rate springs to perfectly match your riding style, ensuring optimal comfort and handling without compromising your budget.
Can I adjust the preload myself?
Yes, the 5-position cam-style adjuster lets you dial preload up or down without tools, allowing you to fine-tune your ride for different loads.
Will these shocks make my ride softer?
While offering improved comfort, these shocks provide controlled damping and progressive spring rates for better handling, not just a softer feel. You can adjust the preload to your preference.
How do I choose between standard and heavy-duty springs?
Standard springs suit average riders and loads, while heavy-duty springs are recommended for heavier riders, frequent two-up riding, or carrying substantial luggage. Consult our Shop by Bike tool for specific recommendations.
| BRAND | Progressive |
| TYPE | Shocks and Struts |
| SKU | T14-630122 |
| WEIGHT | 9.4 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.
