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 durable suspension performance with a straightforward design that improves ride quality across the board. Built with double-wall steel bodies, nitrogen-charged valving, and a five-position preload adjuster, they are designed to match any rider weight or preference on your Harley-Davidson.
For Harley-Davidson riders seeking a reliable and effective suspension upgrade, the Progressive 412 Series shocks are an excellent choice. These shocks are engineered to provide a smoother, more controlled ride than factory units, making long hauls and daily commutes more comfortable. Their robust construction ensures they can handle the demands of the road, providing consistent performance mile after mile.
The versatility of the Progressive 412 Series shocks is a key benefit. The accessible five-position cam-style preload adjuster allows you to quickly modify the shock's stiffness to match your specific riding conditions, whether you're riding solo, with a passenger, or carrying extra gear. This adjustability ensures your Harley-Davidson maintains optimal comfort and control, no matter the load.
Can I adjust the ride height or stiffness?
Yes, the five-position cam-style preload adjuster lets you dial in damping to match your weight and riding style, effectively adjusting the spring stiffness.
What's the difference between the Standard and Heavy-Duty spring options?
Standard springs are typically suited for average-weight riders and light loads, while Heavy-Duty springs are designed for heavier riders, two-up riding, or bikes with significant cargo.
Will these shocks require a re-tune of my motorcycle?
Suspension changes do not typically require an engine or fuel system re-tune. However, it's always good practice to check your tire pressure and overall bike setup after any significant suspension modification.
| BRAND | Progressive |
| TYPE | Shocks and Struts |
| SKU | T14-669182 |
| WEIGHT | 9.9 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.
