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The Progressive Suspension 412 Series Shock is designed specifically for Harley Davidson models, offering a simple yet durable solution to enhance your motorcycle's suspension performance. With a focus on affordability and quality, this shock absorber features a five-position cam-style spring preload adjuster that allows riders to easily customize their ride for optimal comfort and handling. Whether you're cruising city streets or tackling longer rides, this shock provides reliable support and improved stability. Made in the USA, the 412 series is built with high-quality materials to withstand demanding riding conditions and ensure longevity. It is compatible with a variety of Harley models, and some units are approved for road use, as verified by current certification. The shocks are measured from center of eyelet to center of eyelet, ensuring accurate replacement and compatibility with your existing setup. When installing these shocks on Harley XL models from 1986 to 2015, modifications or spacers to the chain or belt guard might be necessary to ensure proper clearance and prevent contact issues. A slightly longer shock than stock can alter the head angle, resulting in quicker steering response, while a shorter shock can slow steering. Heavy-duty applications are recommended for bikes operating at or near maximum load ratings more than half the time. Before selecting shocks that differ from OEM length, verify that wheel travel adjustments will not cause clearance issues with components such as the swingarm, axle, exhaust, chain or belt guard, or tires. The 412 series is available in various finishes and spring options, including full show-chrome or black covers, as well as chrome or black springs and end caps, allowing customization to match your bike’s style. This versatile shock absorber is an excellent upgrade for riders seeking improved handling, comfort, and style without compromising roadworthiness or durability.
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