Forum Discussion
ron_dittmer
May 28, 2015Explorer II
I had read up on FSDs years ago and recall inside they have a mechanical limiting check valve that allows hydraulic fluid to pass thru to make the shocks soft under normal conditions, but kick into heavy duty mode on demand. The end result is that you get a soft ride except when road conditions change which require heavy duty shocks.
I have the other Koni RV shocks, the red colored adjustable model. They are set highest, so I would imagine they are comparable to the HD Bilsteins. As an experiment with my wife driving, I laid on my back on the floor over the rear axle. There really is a lot of road vibration felt there laying on the floor. It would be great if the FSDs can reduce that. It sounds like that is what they are designed to do. A soft and heavy duty shock, all in one.
I have the other Koni RV shocks, the red colored adjustable model. They are set highest, so I would imagine they are comparable to the HD Bilsteins. As an experiment with my wife driving, I laid on my back on the floor over the rear axle. There really is a lot of road vibration felt there laying on the floor. It would be great if the FSDs can reduce that. It sounds like that is what they are designed to do. A soft and heavy duty shock, all in one.
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