Yesterday I had my first flat tire on the rear wheel. I was able to find where a small sliver of glass that punctured the tire. I marked it and removed the glass. I pumped some air in and could feel the air escaping. I pulled out some of the tube and was going to patch it, but after pumping air into the tube, the tube was losing air, but I couldn’t locate where I was losing it. I was a distance from home so fortunately I go the bike back to my car and left it at the bike shop for repair. I was contemplating removing the wheel, but I thought I would let the repair shop do it. Your thoughts please.