Nothing is really made very well or with the highest quality material any longer, not much anyway. I have problems with all tires no matter where they come from. tubes also. I guess it is because I am super critical of the way a tire runs because it is the most important connection to the road or dirt surface that the bike connects to! With the new foreign-made tubes, I find that the seams tend to fail on them, they have bad tolerances and are made of iffy material. In terms of tires, I want and need them to run totally true, and this is not easy no matter who makes them. Even when my rims are running super clean and true, the tires don't always seat perfectly...I am using silicone spray more and more when seating the bead, and even Conti's don't always seat right. It takes patience and a good number of tries before I am satisfied with the way the tire runs. Pressure up, de-pressure, adjust bead, re-pressure, back and forth until clean. Even though the factory molds for almost all of the tires made is exactly perfect, it doesn't mean the tire will seat perfectly true on the rim. It depends on a lot of variables, especially if your rim is not true as can be...