Progressive Suspension 412 Series Shock - 15-Inch Heavy Duty for Cruiser and Touring Bikes

The Progressive Suspension 412 Series Shock, part number 412-4272B, is engineered for cruiser and touring motorcycles requiring a durable and adaptable suspension upgrade. This 15-inch heavy-duty shock features nitrogen-charged technology with multi-stage, velocity-sensitive valving that automatically adjusts to riding conditions, ensuring optimal comfort and handling in a variety of terrains. The complete shock assembly includes chrome springs and covers, providing both strength and aesthetic appeal for your bike.
The progressively wound steel spring enhances ride quality and stability, offering superior handling whether you're cruising on highways or navigating city streets. A five-position cam-style preload adjuster allows riders to fine-tune their suspension setup, making it easy to customize the ride to personal preferences or specific load conditions. Designed specifically for custom applications, these shocks are available in several lengths to suit different motorcycle setups.
Made in the USA, the Progressive Suspension 412 Series shocks are available in both standard and heavy-duty configurations. Heavy-duty options are recommended for bikes often operated near maximum load capacity, offering increased durability and performance. Before installation, ensure that your wheel travel can be adjusted without causing clearance issues such as swingarm or axle contact with exhaust, chain or belt guards, or tires. Proper fitment is essential for safe and effective suspension performance, especially when selecting different lengths from OEM specifications.

Features:

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

• Complete assembly includes chrome springs and covers for durability and aesthetic appeal

• Progressively wound steel spring provides superior ride quality and handling

• Five-position cam-style preload adjuster for customized suspension setup

• Available in several lengths for tailored application requirements

• Made in the USA with options for standard or heavy-duty configurations for demanding loads