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 consistent damping performance and a durable double-wall steel body for Harley-Davidson motorcycles. Their nitrogen-charged, multi-stage velocity-sensitive valving ensures a controlled and comfortable ride, making them a versatile upgrade.
Upgrade your Harley-Davidson's suspension with the proven performance of Progressive 412 Series shocks. Built with a robust double-wall steel damper body and a high-pressure nitrogen gas charge, these shocks provide consistent, fade-free damping. The multi-stage velocity-sensitive valving reacts intelligently to various road imperfections, giving you a smooth and composed ride.
The Progressive 412 Series shocks are designed to adapt to your riding needs. With the convenient 5-position cam-style preload adjuster, you can easily set the spring stiffness to accommodate your weight, a passenger, or luggage. This flexibility ensures that your Harley-Davidson maintains optimal handling and comfort, regardless of your load, for a truly personalized riding experience.
Can I adjust the ride height or stiffness?
Yes, the 5-position cam preload adjuster lets you dial in spring stiffness to match your weight and riding style. It does not significantly change ride height.
Are these shocks a significant upgrade over stock?
Absolutely. The 412 Series offers more consistent damping, better heat dissipation, and adjustability that often surpasses factory suspension components, leading to a more controlled ride.
How do I ensure these fit my Harley-Davidson?
To ensure correct application and spring rate selection, verify your specific model and year with Shop by Bike before ordering.
| BRAND | Progressive |
| TYPE | Shocks and Struts |
| SKU | T14-614034 |
| WEIGHT | 10.8 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
