Stock tires wear quickly on pavement, so if the owner did alot of that type of driving they would change over to radials which last longer. Since you posted the hrs/mileage ave, it's not like they were out street racing, but that's another clue that it was ridden on fairly even terrain and possibly roads. I would consider this a good thing as far as shocks and joints go but would check brakes and tranny. As for tires, that close-up pic made it look like the tread was maybe half gone?