Originally Posted by choaderboy2

He taught me about frequency matching of the front and rear suspensions, basicaly the rear suspension needs to have a higher natural frequency than the front so bobing and other chassis exciting, traction reducing effects of bumps and undulations can be reduced. You tune so they will cancel out in 1/2 cycle.

Basicaly in a close to 1:1 motion ratio suspension like ours, this means the rear spring rates must be higher than the fronts. I am starting to do this based on his equations, using roll bars to make up the gradient in roll stiffness that this causes.

So lately my spring rate recomendations are way different from the status qou. I will have more experiance with this so and will be changing some of the good old standard rule of thumb spring rates soon.

Mike