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 durable suspension performance for Harley-Davidson motorcycles, featuring a high-pressure gas-charged damper and adjustable preload. Their double-wall steel construction and multi-stage velocity-sensitive valving provide smooth, consistent damping across diverse road conditions. These shocks are built to offer a noticeable improvement in ride quality.
Upgrade your Harley-Davidson with the reliable performance of Progressive 412 Series shocks. Engineered with a robust double-wall steel body and a high-pressure nitrogen gas charge, these shocks are designed for consistent damping and longevity. The multi-stage velocity-sensitive valving intelligently adapts to varying road surfaces, ensuring a smooth and controlled ride every time you hit the asphalt.
The ability to adjust your motorcycle's suspension is key to maximizing comfort and performance. With the 412 Series's 5-position cam-style preload adjuster, you can easily dial in the perfect setup for your body weight and riding style, whether you're a light rider or carrying a passenger and gear. This versatility makes the 412 Series an excellent choice for any Harley-Davidson enthusiast looking for a personalized ride experience. Consider a fork oil upgrade for a more balanced suspension feel.
Can I adjust the preload on these shocks?
Yes, the 5-position cam-style adjuster allows you to easily dial in the preload to match your body weight and riding style, from light to heavy riders.
What's the difference between the standard and heavy-duty springs?
Standard springs are suitable for average riding loads, while heavy-duty springs are designed for heavier riders, two-up riding, or carrying significant luggage, providing more support and preventing bottoming out.
Are these shocks available in black?
Yes, the Progressive 412 Series shocks are offered in both chrome and black finish options to match your Harley-Davidson's aesthetic.
| BRAND | Progressive |
| TYPE | Shocks and Struts |
| SKU | T14-669162 |
| WEIGHT | 9.6 lb |
I bought these for my '06 FLHR and could not be happier. I'm 6' 275 lbs so I went with the heavy duty option. Took about 30 min. to change shocks and the ride has improved considerably, took the jolt out of hitting heaves in the road.
While removing the rear wheel for some other service they just quite literally fell apart in two pieces leaving me with a garage floor full of suspension oil and one unusable shock. Spoke with their warranty rep who told me in so many words that its not their problem. Dissapointed to say the least.
So far loving these, the ride is much smoother and an awesome look. Going for the 12" was a good choice, raised it but not too much.
Just changed from my stock Harley to the 13-in and what a difference it made. Bike handles better and rides better
