Progressive Suspension 412 Series Shock - 15 Inch Heavy Duty - Model 412-4272B

412 Series Shock - 15" - Heavy Duty

The Progressive Suspension 412 Series Shock, part number 412-4272B, is engineered specifically for cruiser and touring bikes to provide a smooth and controlled ride. Featuring nitrogen-charged design and multi-stage, velocity-sensitive valving, these shocks automatically adjust to changing riding conditions, ensuring optimal performance whether you're cruising on highway or navigating rougher terrain. The complete assembly includes durable chrome springs and covers, offering both protection and an attractive finish. Designed with a progressively wound steel spring, these shocks deliver superior handling and ride comfort by adapting to different load scenarios and road surfaces. The five-position cam-style preload adjuster allows riders to customize their suspension setup, optimizing ride height and stiffness according to personal preference or load requirements.

Features:

• Nitrogen-charged shocks with multi-stage, velocity-sensitive valving for automatic adjustment to riding conditions

• Complete shock assembly includes chrome springs and covers for durability and aesthetics

• Designed specifically for cruiser and touring motorcycles for tailored performance

• Progressively wound steel spring provides improved ride quality and handling

• Five-position cam-style preload adjuster allows precise ride height and stiffness customization

• Available in multiple lengths for custom application compatibility

• Heavy Duty (HD) models recommended for bikes operated at or near maximum load capacity over 50% of the time

• Made in the USA to ensure quality and reliability

• Compatibility considerations include verifying wheel travel and clearance to prevent contact issues with exhaust, chain/belt guards, or tires when selecting non-OEM lengths