I replaced my knobbies with a set of Panaracer Pasela after extensive consideration. I was hung up on looks during my search, but I did not want the right look at the expense of quality. I wanted a durable tire to replace my durable knobbies, but not durable at the expense of a light-weight tire. My bike is too heavy as it is. Discussions online were instrumental in my becoming educated over a couple of weeks and I encountered Panaracer Pasela. I bought them on a Friday and they arrived the very following Monday, and shipping was free! I got them put on just today, the day of arrival, and they are beautiful. They are beautiful and light and smooth and quiet. Old look to them with the fantastic gum-wall.