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, adjustable suspension at a competitive price point for your Harley-Davidson. Built with double-wall steel bodies, nitrogen-charged gas springs, and multi-stage velocity-sensitive damping, these shocks provide smooth, consistent performance across a range of riding weights. Experience improved control and comfort on every ride.
Upgrade your Harley-Davidson's rear suspension with the Progressive 412 Series shocks, engineered for riders seeking a significant improvement over stock. These shocks feature robust double-wall steel construction and are nitrogen-charged to maintain consistent damping and prevent fade. The multi-stage velocity-sensitive valving adapts to changing road conditions, ensuring a plush ride over small bumps and firm control through larger compressions.
The Progressive 412 Series shocks offer a straightforward upgrade path for Harley-Davidson owners. The 5-position cam-style preload adjuster makes it simple to fine-tune your suspension without special tools, allowing you to adapt to solo rides, two-up cruising, or fully loaded touring. For a complete suspension overhaul, consider pairing these rear shocks with a Progressive front fork kit to achieve balanced performance and a truly custom ride.
Can I adjust these shocks for different rider weights?
Yes, the 5-position cam-style preload adjuster lets you dial in firmness and ride height to match your weight, a passenger, or luggage.
What is multi-stage velocity-sensitive damping?
This technology allows the shock to react differently to varying shaft speeds, providing a softer feel over small bumps and firmer resistance for larger impacts, improving overall ride quality.
Will these shocks change the stance of my bike?
The 412 Series shocks are designed to maintain a similar ride height to stock. Adjusting the preload can slightly alter the sag to achieve your preferred stance and feel.
| BRAND | Progressive |
| TYPE | Shocks and Struts |
| SKU | T14-614016 |
| WEIGHT | 11.0 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
