I have asked SPAX to advise on that, I think that the current springs may end up being too long, due to the design of the adjustable damper. I think I will look into progressive springs, as I know that they can work very will, giving a good ride, but not too much body roll.
I do not know the poundage, I may get round to removing one and testing it if I have to, but SPAX should be able to provide this information.
