Progressive Suspension 412 Series Cruiser Shocks
Progressive Suspension 412 Series Cruiser Shocks
Available in stock (5)
-
Estimated delivery: Feb 06 - Feb 10
About this product
About this product
Upgrade your cruiser or touring bike's ride quality with Progressive Suspension 412 Series shocks. These shocks offer a blend of classic styling and modern technology, providing enhanced comfort and handling on the road. Built with quality materials and precision engineering, the 412 Series shocks deliver consistent performance and long-lasting durability.
Description
These nitrogen-charged shocks feature multi-stage, velocity-sensitive valving that automatically adjusts to changing riding conditions. This ensures a smooth and controlled ride, whether you're cruising down the highway or navigating winding roads. The progressively wound steel spring enhances ride quality and improves handling, while the five-position cam-style preload adjuster allows you to fine-tune the ride to your specific needs. The complete shock assemblies include chrome springs and covers, adding a touch of style to your bike. The Progressive Suspension 412 Series shocks are designed specifically for cruiser and touring bikes, ensuring optimal fit and performance. They have an extended length of 11.50" and progressive spring rate of 210 lb/in - 250 lb/in. Made in the USA, these shocks represent quality craftsmanship you can rely on.Features & highlights
- Nitrogen-charged shocks provide consistent damping and improved ride quality.
- Multi-stage, velocity-sensitive valving automatically adjusts to riding conditions for optimal performance.
- Progressively wound steel spring delivers superior ride and handling characteristics.
- Five-position cam-style preload adjuster allows for easy fine-tuning of the ride.
- Designed specifically for cruiser and touring bikes, ensuring a perfect fit and optimal performance.
- Complete shock assemblies include chrome springs and covers for a stylish look.
- Made in the USA with high-quality materials for long-lasting durability.
Technical specifications
- Brand: Progressive Suspension
- Product Name: Shock Absorber
- Vendor Part Number: 412-4257C
- Type: Coilover Monotube
- Mounting Position: Rear
- Damping Method: Gas Charged
- Adjustment Style: Automatic
- Spring Type: Single Progressive Rate
- Progressive Spring Rate: 210 lb/in - 250 lb/in (3.75 kg/mm - 4.50 kg/mm)
- Extended Length: 11.50" (292.00 mm)
- Material: Steel
- Color/Finish: Black, Chrome
- Duty: Standard
- Reservoir Location: Internal
- Units: Pair
Important to know
Heavy Duty (HD) applications are recommended for bikes operated at or near maximum load rating over 50% of the time. Before purchasing or attempting to install shocks that are different than the OEM length, confirm that your wheel travel can be altered without causing clearance issues such as swingarm/axle to exhaust contact as well as chain/belt guard or tire contact.
Shipping & Return
Shipping & Return
Free shipping to GLS parcel shop parcel box for purchases over DKK 1,000.
GLS home delivery costs DKK 59.
We do our best to ship your order as quickly as possible. All orders are generally packed within 24 hours on weekdays.
There is a 14-day return policy. Read more
Parts Denmark Info
Parts Denmark Info
Parts Denmark is a new webshop based in Denmark. We have a physical location you can visit (No showroom yet), and we have both email and phone support in our opening hours.
Our company info is:
Parts Denmark ApS
VAT: DK45974758
Dam Holme 11
3660 Stenløse, Denmark
hello@partsdenmark.com
+45 222 333 29
Best regards,
William Svendsen & Martin Høyer (Owners)
Specifications
PROGRESSIVE SUSPENSION
412-4257C
Shock Absorber
Standard
Rear
Steel
Coilover Monotube
Pair


Who is behind Parts Denmark
Martin and William are the duo behind Parts Denmark — an unlikely but awesome combo of a tech-savvy young IT wizard and a seasoned motorcycle guru who’s seen (and fixed) it all. Together, we’ve built a team with big ambitions, plenty of passion, and a shared mission to create great things — side-by-side with you.

