PROGRESSIVE SUSPENSION 412 Series Shocks — 305 mm (12 in), Black, Chrome – 71-86 Big Twin, 79-86 Touring, 82-86 FXR, 84 Police, 85-86 Softail

412 Series Shocks are a simple, durable upgrade designed specifically for many Harley models. They provide a cost-effective improvement in suspension performance and feature a five-position cam-style spring preload adjuster so you can quickly dial in ride feel. Made in the USA. 🛠️🏍️

• Five-position cam-style spring preload adjuster for easy tuning.
• Simple, durable design for reliable service and value.
• Multiple style options: full show-chrome or black covers; chrome or black springs and end caps.
• All shocks measured center-of-eyelet to center-of-eyelet; installation on '86–'15 XL models may require modifying or spacing the chain/belt guard for clearance.
• Changing shock length can alter head angle and steering: slightly longer may quicken steering; slightly shorter may slow steering.
• Heavy duty applications recommended for bikes operated near the manufacturer's maximum load rating over 50% of the time.
• Before purchasing or installing shocks of a different OEM length, confirm wheel travel and clearances to avoid swingarm/axle-to-exhaust, chain/belt guard, or tire contact.
• Some or all shocks listed are approved for road use; refer to the most recent certificate for current listings.