Progressive 412 Series Heavy Duty Black 13.5" Rear Shocks (412-4021B)

The 412 Series shocks are simply the best value shock on the market today. The 412s simple, durable design means they will be an improvement to your motorcycles suspension performance for as long as you are riding it. The doublewall steel body construction with nitrogen charged, multi-staged velocity sensitive valving gives you smooth, consistent damping. A five-position cam style preload adjuster lets you dial in your ride whether you're a light rider or heavy hitter.

• All Steel double wall damper with multistage velocity sensitive damping.
• 5-position cam style preload adjuster.
• High Pressure Gas Charged for consistant damping performance.
• Heavy-Duty progressive rate springs.
• Sold in pairs.
• Made in the USA.

NOTE: All shocks are measured center-of-eyelet to center-of-eyelet.

NOTE: A shock which is slightly longer than stock may alter the head angle slightly and provide somewhat quicker steering.

NOTE: A shock which is slightly shorter than stock may alter the head angle slightly and provide somewhat slower steering.