Progressive Suspension 412 Series Shock - 11.5 Inch Heavy Duty Black 412-4011B for Harley Models

The Progressive Suspension 412 Series Shock is engineered specifically for Harley-Davidson motorcycles, offering a straightforward and durable upgrade to enhance your bike's suspension performance. With a design that emphasizes simplicity and reliability, this shock absorber provides an effective and cost-efficient solution for riders seeking improved ride quality. The 412 series features a five-position cam-style spring preload adjuster, allowing you to easily dial in your preferred ride stiffness and comfort without the need for tools, making adjustments quick and convenient for different riding conditions or loads. Crafted in the USA, these shocks are designed to withstand demanding riding environments and are available with various aesthetic options, including full show-chrome or black covers, as well as chrome or black springs and end caps, to match your bike’s style.

Each shock is measured from center-of-eyelet to center-of-eyelet, ensuring accurate compatibility with your Harley. When installing on '86-'15 XL models, some modifications or spacing of the chain or belt guard may be necessary to ensure proper clearance. Slightly longer shocks than stock can subtly alter the head angle, resulting in quicker steering, while shorter shocks can slow steering slightly, providing a different handling feel. Heavy-duty applications are recommended for bikes frequently operated near the maximum load capacity, often over 50% of the time. Before selecting shocks that differ from OEM length, verify that wheel travel and clearance around the swingarm, axle, exhaust, chain or belt guard, and tires are adequate to prevent contact or interference, ensuring safe and optimal performance.

Designed for durability and performance, the PROGRESSIVE SUSPENSION 412 series shocks are an excellent upgrade for riders seeking enhanced comfort, handling, and style on their Harley motorcycles.

Features:

• Five-position cam-style spring preload adjuster for easy customization of ride stiffness

• Designed specifically for Harley models, ensuring perfect fit and performance

• Made in the USA with durable materials for demanding riding conditions

• Available with various aesthetic options including chrome or black covers and springs

• Measurement from center-of-eyelet to center-of-eyelet ensures compatibility

• Heavy-duty applications recommended for high load or frequent maximum load riding

• Suitable for models from 1986 to 2015 with proper clearance considerations

• Slight length variations can alter steering response for personalized handling

• Some installations may require modification of chain/belt guards for clearance

• Cost-effective upgrade to improve suspension performance and ride comfort