Progressive Suspension 412-4001B Heavy Duty Motorcycle Rear Shock Absorber - 12.5

The Progressive Suspension 412 Series shock absorber delivers exceptional value and performance for riders seeking a reliable factory replacement solution. Engineered with proven durability, this 12.5-inch rear suspension shock significantly improves your motorcycle's ride quality and handling characteristics.

Key Features:

• Double-wall steel body construction for enhanced strength and longevity
• Nitrogen charged with multi-staged velocity sensitive valving for smooth, consistent damping across all riding conditions
• Five-position cam-style preload adjuster allows precise tuning for rider weight and load
• Heavy-duty progressive rate spring with chrome finish provides increasing resistance through travel
• High-pressure gas charging maintains consistent damping performance and prevents fade
• 12.5-inch eye-to-eye length fits a wide range of cruiser and standard motorcycles

Whether you're a solo rider or frequently carry a passenger and cargo, the adjustable preload system lets you dial in the perfect ride height and comfort level. The progressive rate spring delivers plush compliance over small bumps while resisting bottoming on larger impacts, making this shock ideal for daily riding and light touring applications.