I have a 2004 GIANT OCR3 road bike which I loved riding in my neighborhood back East. The roads were nicely paved there but I still had to change my tubes now and again. I currently live in Arizona in a neighborhood where the roads are in dire need of paving but I won't hold my breath waiting for the highway department to show up. I've gotten back into riding regularly but have been riding my mountain bike since I otherwise would be changing tubes quite often. I have heard tires are now being made which won't pop or at least are more puncture resistant and am wondering if anyone can tell me what they are called and where I might find them. Thanks!