My bike has at last returned form the shop. I wanted to pick it up yesterday but on my way down the loaner got a flat tire. This is the second time my loaner bike got a flat while my rig was in the shop. The only item I still needed to do was change the back tire. Pictured are the new and old tire. The old one had almost no tread down the center, and the rubber had worn so thin there was a green layer exposed. I'm not sure how many miles this represents but I'm sure it's in the thousands.