

🏍️ Elevate your ride with precision-tuned power and durability — don’t just ride, dominate the road!
The 412-4075B is a black anodized, 11.5-inch heavy-duty rear suspension shock designed specifically for motorcycles. Featuring a robust double-wall steel damper, high-pressure nitrogen gas charge, and a 5-position preload adjuster, it offers customizable, smooth, and consistent damping performance. Its progressive rate spring and durable construction ensure enhanced ride comfort and longevity, making it a top choice for riders seeking reliable suspension upgrades.
| ASIN | B001JA7O6I |
| Auto Part Position | Rear |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #1,193,146 in Automotive ( See Top 100 in Automotive ) #861 in Powersports Shocks |
| Brand | Progressive Suspension |
| Customer Reviews | 4.1 4.1 out of 5 stars (95) |
| Date First Available | October 26, 2008 |
| Extended Length | 11.5 Inches |
| Exterior Finish | Black Anodized |
| Is Discontinued By Manufacturer | No |
| Item Weight | 9 pounds |
| Item model number | 412-4075B |
| Manufacturer | Progressive Suspension |
| Manufacturer Part Number | 412-4075B |
| Material | Steel |
| Model | Progressive Suspension |
| Product Dimensions | 17 x 7 x 3.5 inches |
| Style | Heavy Duty |
| UPC | 953040129791 |
| Vehicle Service Type | Motorcycle |
K**S
Great replacement shocks
These are great shocks. Installed on a 2009 Roadglide. fit perfect makes the bike sit right and handles very well
T**C
Easy for the most part to install
Do your research on youtube for your specific application. Requires center jack. There are several bushings and washers for various applications. I personally have 2010 FLHX, which called for one cuffed bushing and one washer. The bushing cuff should face the bike from the backside of the shock. I retained the locking washer on mine from the OEM set-up but replaced the washer with the one provided. I am 5"10" about 200lbs and am starting with the setting at the 3rd stop. After three rides, the ride is more comfortable and I haven't bottomed out yet. Definitely worth the money and effort to install yourself.
G**G
Works as expected
A little on the stiff but ok
R**A
👍
Excellent quality and service thank you 👍
A**R
Way to stiff........... Rides like a hard tail.
Installed on a 2017 Street Glide Special. Very hard ride. Not happy with them at all. Going back to stock until I can find something else. Beats you up with these on the bike.
L**S
Good Shock, HD spring rate not good for light rider and gear!
Installed on my 2021 Street Glide Special. Have to say when it says HD Springs they are! Feels more like a Hard Tail then a Bagger. Spring rate is way to heavy, I am a 220 lb rider with 6.5 lid speakers, 8 inch woofers in each bag and carry a lot and still to heavy even set at softest position. Now as looks and fit, yes they fit and was easy to install. Value for money is good, ride quality is pretty harsh, looks good and they do perform, just remember if a light rider and weight, they will be very stiff. Had to order different shocks!
C**T
Decent
Better then stock!
G**O
The product was great. Good price
The product was great. Good price. They were easy to install. Only problem is the ad didn't say it was a pair - of course I assumed that it was, since you can't buy just one shock......but it should have said 'pair'.
I**S
As described Excellent product
Trustpilot
5 days ago
4 days ago