The 7 year old Maxxis tires are shot, starting to break apart in the ribs. I have had great luck with these, wondering about the New (to me anyway) Goodyear Endurance tires made in the US and seem to ...
Or put the Sailun S637's on it, then you have a steel ply carcass tire, which would not require the full 110 lbs on inflation. 90-95 should be fine. Chris