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The Progressive Suspension 412 Series Shock (Part Number: 412-4074C) is specifically designed to enhance the ride quality and handling of Harley FLH and T models. Featuring a simple yet durable construction, these shocks provide a cost-effective upgrade to your motorcycle's suspension system. The five-position cam-style spring preload adjuster allows riders to easily customize ride stiffness, accommodating various riding styles and loads for optimal comfort and performance.
Constructed with high-quality chrome covers and springs, the shocks are available in multiple style options to match your bike's aesthetic. Made in the USA, these shocks are measured from center-of-eyelet to center-of-eyelet to ensure proper fitment. They are approved for road use, with certification details available for reference. When installing on models from 1986 to 2015 XL, some modifications to the chain or belt guard may be necessary to ensure proper clearance and prevent contact issues.
Choosing the right shock length is crucial; a slightly longer shock can alter the head angle for quicker steering, while a shorter shock may slow steering response. For heavy-duty applications or bikes operated near maximum load ratings most of the time, heavy-duty versions are recommended. Before selecting shocks of different lengths than OEM, verify wheel travel and clearance to avoid interference with exhaust, swingarm, axle, chain/belt guard, or tires. This versatile shock model offers a significant upgrade in suspension performance, ensuring a smoother, more controlled ride tailored to your specific riding needs.
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