My bike had 4 flats before i took it to a bike shop that identifued it as a purefix without me saying the brand, based on my description of the problem. Obviously, this happens a lot. The mechanic explained that if I replaced the rim tape with a thicker, higher quality tape, the spokes would not poke through and pop the tires. This simple fix worked. Why can't Purefix use better quality rim tape? I paid good money for the bike, and then spent an extra $50 refinancing popped tires, plus another $30 for replacement rim tape.