Penske's hydraulic preload adjuster adds the ability to change spring preload for a variety of reasons. If you want the change the ride quality of your ride, or maybe you have added a passenger, or you want to hit the canyon roads. No need to break out the tool and bust your knuckles with the old spanner collar. Now just a quick turn of the little knob can change the spring preload and make you ride much better. 

• 8mm of adjustable preload

• Initial preload can be changed with split ring on shock body

• Remote mounted adjustment knob connected with steel braided line.

**If updating an existing Penske shock specify hose lenght needed.