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.
Upgrade your M8 Harley-Davidson Softail with the Progressive 465 Series high-pressure gas monotube shocks. These shocks are built to deliver consistent, high-performance suspension, transforming your ride. Each unit is hand-built, tuned, and dyno-tested to ensure peak performance and reliability.
The Progressive 465 Series shocks feature a robust 46mm bore with deflective disc damping, providing exceptional control and a smooth ride over varied terrain. With a 5-position rebound adjuster, you can easily dial in your preferred damping characteristics. These shocks come with either standard or heavy-duty spring rates, allowing you to match your setup to your riding style and load.
Whether you're looking to improve daily comfort or enhance aggressive riding, these shocks offer the adjustability to meet your needs. The multiple length options allow for fine-tuning your bike's stance and ride height. Combine these with a matching fork upgrade for a complete, balanced suspension system that elevates your M8 Softail to new levels of performance.
Are these shocks compatible with my M8 Harley-Davidson Softail?
Yes, the Progressive 465 Series shocks are specifically designed for M8 Harley-Davidson Softail models. Please check our Shop by Bike tool to ensure correct fitment for your specific model and year.
Can I choose different spring rates for these shocks?
Yes, these shocks are available with either Standard or Heavy-Duty spring rates, allowing you to select the option best suited for your riding style and typical load.
Will installing these shocks change my bike's ride height?
These shocks are available in several lengths, which can affect your bike's ride height. You can choose the length that best suits your desired stance and handling.
| BRAND | Progressive |
| TYPE | Shocks and Struts |
| SKU | T14-669256 |
| WEIGHT | 6.65 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.
