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The Progressive Suspension 412 Series Shock (Part Number: 412-4065B) is designed specifically for Harley-Davidson models, offering a cost-effective upgrade to enhance your motorcycle's suspension performance. Constructed with durability in mind, these shocks feature a simple yet robust design that provides reliable handling on the road. The black finish adds a sleek appearance, complementing various motorcycle styles while ensuring long-lasting corrosion resistance. These shocks are calibrated to fit standard 13-inch lengths, providing a balanced ride quality suitable for a variety of riding conditions.
The 412 Series shocks include a five-position cam-style spring preload adjuster, allowing you to easily customize the ride stiffness and comfort to suit your preferences. This feature makes it straightforward to dial in the ideal suspension setting without requiring special tools or extensive mechanical knowledge. Suitable for most Harley models, these shocks are approved for road use, but it is recommended to consult the latest certification to confirm compliance.
Made in the USA, the shocks are measured from center-of-eyelet to center-of-eyelet, ensuring precise fitment. When installing on '86-'15 XL models, modifications such as spacers or adjustments to the chain or belt guard may be necessary for proper clearance. Slightly longer shocks can alter the head angle for quicker steering, while shorter shocks may slow steering response, providing options for customizing handling characteristics. Heavy-duty applications are recommended for bikes frequently operated near maximum load capacity, typically over 50% of the time. Before choosing shocks different from OEM length, verify that wheel travel can be adjusted to prevent clearance issues with the swingarm, exhaust, or tires. These shocks are designed to improve ride quality, durability, and handling performance, making them a reliable choice for Harley riders seeking an upgrade.
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