I just bought a used Renn disc and took it for a spin. My brother noticed that the wheel wasn't in the center of the chainstays. It looks like it is about 1/8" away from the left side and about 3/8" from the right (looking at it from behind the wheel). It felt and rode great. I had to adjust my breaks so they wouldn't rub, but no ill effects. How do I adjust it to get in the center? I have to be losing some areo benefit since the wheel is not behind the down tube. I am new to cycling and not much of a mechanic. Can anyone give me some advice? Thanks