Torsion Bars Test/Inspection

Thanks for your input, just crawled out from under car both bars are free of any damage there is no rust and they are firmly attached to the car. I take it that measurment is taken through bar? if that is the case then the bars are just under a 1" (230mm-not sure what that is in inches). However if they are standard you think that it is better to change them for thicker ones? I will just have to see how much money is left over.
Cheers,
Monaro