[bobbecky]

I’ve read that the SailuNs are supposed to be good for six years, and I’m sure any brand at any price will see an occasional failure, but I think the Sailuns are about as good as you are going to get. At four years, you might be good to replace the one, but how old is it really? Can you see the date code on the tires? For the money, I would just put six new Sailuns on the rig. Anymore, Sailuns are getting much easier to find, and not sure about the Hercules.