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 shocks deliver durable suspension performance with a simple, proven design for Harley-Davidson motorcycles. Double-wall steel damper bodies house multi-stage velocity-sensitive valving and nitrogen charging for smooth, consistent damping across all riding conditions. Five-position preload adjustment lets you tune the ride for your weight and riding style.
When it comes to upgrading your Harley-Davidson's ride, the Progressive 412 Series shocks offer a reliable solution built on years of proven design. These shocks feature robust double-wall steel damper construction, engineered to withstand the demands of the road. The internal multi-stage velocity-sensitive damping, combined with high-pressure nitrogen gas charging, ensures a consistently smooth and controlled ride, absorbing impacts and maintaining stability through various road conditions.
The beauty of the 412 Series shocks lies in their straightforward adjustability. The integrated 5-position cam-style preload adjuster allows you to quickly and easily modify the spring stiffness to suit your specific riding needs, whether you're solo, riding with a passenger, or carrying gear. This capability ensures your Harley-Davidson maintains optimal handling and comfort, enhancing your overall riding experience. Choose from chrome or black finishes to complement your bike's aesthetic.
Can I adjust the ride height or stiffness?
Yes, the 5-position cam-style preload adjuster allows you to adjust the spring stiffness, which can indirectly affect ride height under load, to match your weight and riding style.
Are these shocks a direct bolt-on replacement?
The 412 Series shocks are designed as a direct replacement for many factory Harley-Davidson shocks. However, always confirm your specific model year and application with our Shop by Bike tool to ensure correct fitment.
What is the benefit of multi-stage velocity-sensitive damping?
This type of damping system provides a more controlled and comfortable ride by adjusting its resistance based on the speed of suspension movement, effectively handling both small bumps and larger impacts.
| BRAND | Progressive |
| TYPE | Shocks and Struts |
| SKU | T14-669146 |
| WEIGHT | 9.95 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.
