Progressive Suspension 412-4059C 412 Series Rear Shock Absorbers - Sold in Pairs

The Progressive Suspension 412 Series rear shocks deliver a meaningful upgrade over OEM suspension in a simple, durable, and cost-effective package. Double-wall steel body construction paired with nitrogen-charged, multi-stage velocity-sensitive valving provides smooth and consistent damping mile after mile.

Key Features:

• Nitrogen-charged, multi-stage velocity-sensitive valving for smooth, consistent damping performance
• Five-position cam-style preload adjuster lets you easily dial in your ride to match your weight and riding style
• Double-wall steel body construction for long-lasting durability
• Available in Standard or Heavy-Duty spring rates to suit a wide range of rider weights and load conditions
• Multiple finish options available, including full show chrome or black covers with chrome or black progressive-rate springs
• Sold in pairs — includes all mounting and adjusting hardware
• Made in the USA
• Backed by a one-year warranty

Choosing the Right Spring Rate: Standard spring rates are ideal for most solo riders. Heavy-Duty applications are recommended for riders who operate at or near the manufacturer's maximum load rating — such as riders weighing 220 lbs. or more, or those who ride two-up or with a full luggage load more than 50% of the time.

Important Installation Note: All shocks are measured center-of-eyelet to center-of-eyelet. Before purchasing shocks that differ from OEM length, confirm that your wheel travel can be safely altered without causing clearance issues such as swingarm/axle-to-exhaust contact or chain/belt guard and tire contact. A shock slightly longer than stock may quicken steering geometry slightly; a shorter shock may slow it.