Progressive Suspension 412 Series Shock - 11.5 inch Heavy Duty Black | 412-4066B

The Progressive Suspension 412 Series Shock is engineered specifically for Harley models, offering a simple and durable upgrade to your motorcycle's suspension system. With a 11.5-inch length, these shocks provide a noticeable improvement in ride comfort and handling. Their design incorporates a five-position cam-style spring preload adjuster, allowing riders to easily fine-tune the suspension to match riding conditions and personal preferences, resulting in a smoother ride and enhanced control. Crafted in the USA, these shocks are built with high-quality materials to ensure longevity and reliable performance on the road.
Available with various styling options, including full show-chrome or black covers, and either chrome or black springs and end caps, the 412 Series shocks combine functionality with aesthetic appeal. Some models are approved for street use; please refer to the latest certification for current compliance details. Installation may require modifications such as spacers or adjustments to the chain or belt guard on older XL models, ensuring proper clearance for safe operation.
Choosing shocks that are slightly longer or shorter than the stock length can influence steering characteristics. Longer shocks may provide quicker steering by slightly altering the head angle, while shorter shocks could result in a more gradual steering response. For heavy-duty applications, these shocks are recommended for bikes operated near or at the maximum load rating over 50% of the time, offering increased durability under demanding conditions. Before installation, verify your wheel travel can accommodate different shock lengths without risking contact with components like the exhaust, swingarm, or tires, ensuring a safe and effective upgrade to your motorcycle's suspension system.

Features:

• Designed specifically for Harley models for optimized fit and performance

• Five-position cam-style spring preload adjuster for easy suspension tuning

• Constructed in the USA with high-quality materials for durability

• Available with various styling options including chrome or black finishes

• Heavy-duty application suitable for bikes operated near maximum load ratings

• Compatible with a range of model years with potential minor installation modifications

• Length slightly longer or shorter than stock to influence steering response

• Ensures proper clearance to prevent contact with exhaust, chain, or tires