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The Progressive Suspension 412 Series Heavy Duty Shock (Part Number: 412-4272B) is engineered to provide superior ride quality and handling for cruiser and touring motorcycle riders. These shocks feature nitrogen-charged, multi-stage, velocity-sensitive valving that automatically adjusts to changing riding conditions, ensuring optimal performance whether you're cruising on highways or navigating rough terrain. The complete shock assembly includes durable chrome springs and covers, designed for longevity and aesthetic appeal. A key feature is the progressively wound steel spring that offers a smooth and controlled ride, absorbing bumps efficiently while maintaining stability during acceleration and deceleration. The five-position cam-style preload adjuster allows riders to fine-tune the suspension to their preferred ride height and firmness, making it versatile for various load conditions and rider preferences.
Designed specifically for cruiser and touring bikes, these shocks are available in multiple lengths to accommodate custom applications. They come in both Standard and Heavy Duty versions; the HD models are recommended for bikes operated near or at their maximum load capacity more than half the time. Made in the USA, these shocks ensure high-quality manufacturing standards and durability. Before installation, it's important to verify that the wheel travel can be adjusted without causing clearance issues, such as contact between the swingarm or axle and exhaust, chain or belt guards, or tires. Proper installation and compatibility will help maintain optimal performance and prolong the lifespan of your suspension system.
Whether you're upgrading your existing suspension or customizing your motorcycle, the Progressive Suspension 412 Series Shock offers reliability, adjustability, and improved handling tailored for demanding riding conditions and heavy loads. Its robust construction and innovative design make it an excellent choice for riders seeking enhanced comfort and control on their cruiser or touring motorcycle.
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