As a fairly new guy, a few questions come up when looking at bikes. Figuring out what the best are is pretty easy in most cases. It seems that Specialized and K2 have it down. But a big question that always comes to my mind is "What companies should you avoid?" Usually, that takes care of bad parts, but once in a while there are a few lemons. So what companies/parts do you think it's smart to stay away from?