When Frans and I did oit big ride in 2017, I fitted a set of PR4 GT to the FJR, I had aux fuel, top box and swag on the bike (about the same weight as Lynne. Lol) I ran 50psi in the rear, and 45psi in the front, I completed the full 14,500 no probs, in fact the rear gave me 19,500klm, and the front I changed out at 28,000klm as I was going on a 2000klm ride and wanted to make sure they would last, excellent tyre when plenty of pressure added.