Progressive Suspension 412 Series Shock for Harley FXD – 13-Inch Standard Black Model 412-4083B

The Progressive Suspension 412 Series Shock absorber is engineered specifically for Harley Davidson FXD models, offering a simple yet durable upgrade to enhance your motorcycle's suspension performance. Crafted in the USA, this shock features a straightforward design that provides reliable ride quality and improved handling. The 13-inch length and robust construction make it an ideal choice for riders seeking an effective, cost-efficient suspension enhancement. The black finish adds a sleek, modern appearance that complements the style of your Harley while providing long-lasting corrosion resistance. This model includes a five-position cam-style spring preload adjuster, allowing you to easily dial in your preferred ride stiffness for varying loads or riding conditions. Whether you're cruising on the highway or tackling twisty roads, this adjustable feature helps optimize comfort and stability. It is important to note that some or all shocks listed are approved for road use; always refer to the most recent certification for compliance details. When installing on ’86-’15 XL models, modifications or spacing of the chain or belt guard may be necessary to ensure proper clearance. Slight variations in length compared to stock shocks can influence steering response—longer shocks may provide quicker steering, while shorter ones could result in slightly slower handling. Heavy-duty applications are recommended if your motorcycle is operated near its maximum load capacity over 50% of the time, ensuring durability and safety under demanding conditions. Before purchasing shocks with a different length than OEM, verify that wheel travel and clearance with components such as the swingarm, axle, exhaust, and chain or belt guard are adequate to prevent contact issues. Choose from multiple styles, including full show-chrome or black covers, and options with chrome or black springs and end caps, to customize your bike’s appearance while improving suspension performance.

Features:

• Designed specifically for Harley Davidson FXD models for optimal fit and performance

• Durable construction made in the USA ensures long-lasting reliability

• Five-position cam-style spring preload adjuster allows easy ride customization

• Includes a sleek black finish for corrosion resistance and style

• Provides a 13-inch center-to-center eyelet measurement for consistent performance

• Compatible with various style options, including chrome and black covers, springs, and end caps

• Suitable for road use with certification; always check current approval status

• Adjustable length options to influence steering response and handling

• Heavy-duty applications recommended for maximum load conditions over 50%

• Installation may require modifications on certain Harley models for clearance, especially in ’86-’15 XL series