Good day all. Well, I wish I could tell Gizmo and kevinh what special tricks I had used to get such good mileage. Just had both changed, and recorded mileage: 34,797 km or 21,619 miles. I kept them religiously at 41 PSI, as recommended by Schroader's Honda in NC where they were installed. My local dealer here in Fredericton NB said they were "pretty much done" but no cord showing, no damage etc. The front was just barely at the wear bar and the left side of the rear was far more worn than the right (hey attributed this to road crown). So, I have a new set of PR2s on now and will happily advise mileage. Heading for TX with the toy hauler from Dec to Apr and hope to get in some good rides in the Hill Country. Cheers to all, PK