Categories
- Audio & communication( 99 )
- Bike protection( 35 )
- Brakes
- Electrical( 82 )
- Engine
- Exhaust
- Fairings & body( 128 )
- Footrests & floorboards
- Frame & suspension( 532 )
- Fuel & air systems( 0 )
- Handlebars controls & mirrors( 568 )
- Lighting( 159 )
- Saddlebags & luggage( 60 )
- Seats( 919 )
- Sissy bars( 0 )
- Transmission & drivetrain( 165 )
- Wheels & accessories( 85 )
- All collections
Progressive Suspension 412 Series Shock for Harley FLH/T - 11.5 inches - Black - Part 412-4074B
Regular price $379.95 USD
Category:
The Progressive Suspension 412 Series Shock is specifically designed for Harley-Davidson FLH and T models, offering an affordable upgrade to enhance your motorcycle's suspension performance. Crafted with durability in mind, these shocks feature a simple yet robust design that improves ride comfort and handling. The 412 series is suitable for riders seeking a cost-effective way to optimize their motorcycle's suspension system without sacrificing quality or reliability.
Equipped with a five-position cam-style spring preload adjuster, these shocks allow riders to easily fine-tune their suspension settings for different riding conditions or load requirements. This feature provides customizable ride comfort and stability, making it easier to adapt to various terrains or passenger loads. The shocks are available in multiple style options, including full show-chrome or black covers, and either chrome or black springs and end caps, allowing for personalized aesthetic choices.
All shocks are made in the USA and measured from center-of-eyelet to center-of-eyelet, ensuring compatibility with Harley models from 1986 to 2015. When installing these shocks on certain models, such as the '86-'15 XL series, it may be necessary to modify or space the chain or belt guard to ensure proper clearance. Slightly longer shocks can alter the head angle and provide quicker steering, while shorter shocks may result in slightly slower steering. Heavy-duty applications are recommended for bikes operated near the maximum load rating over 50% of the time. Before installation, verify that your wheel travel can accommodate shocks of different lengths without causing clearance issues, such as contact with the swingarm, exhaust, chain or belt guard, or tires. These shocks are approved for road use, with certification available for current listings, ensuring safety and compliance for street riding.
Features:
- Designed specifically for Harley-Davidson FLH and T models for optimal fit and performance
- Five-position cam-style spring preload adjuster for easy suspension tuning
- Multiple style options available including show-chrome or black covers and springs
- Made in the USA for quality assurance and durability
- Center-of-eyelet to center-of-eyelet measurement for precise installation
- Suitable for a range of load conditions, with heavy-duty options recommended for maximum loads
- May require modifications on certain models for proper clearance during installation
- Alters steering characteristics slightly depending on shock length for customized handling
- Approved for road use, with certification details available for current listings





