jfern1 said:This is a problem I have actually had many times in the past. I just replaced hte tube on the back wheel of my road bike. All is fine now with it, except the wheel does not rotate smoothly. I can't seem to get it so that the brakes don't rub up against the rim of the wheel as it turns. I don't know much about bike mechanics/repairs/technicalities, but i tried many times just to unscrew it and put it back in and have yet to get it to be ok. I feel like I am missing something very simple here.
Changing the rear wheel is a chore and it difficult to do correctly at first, without experience. What you probably did is that you didn't install the wheel back on correctly. Make sure that the wheel is all the way in the dropouts. Really make sure of this; check each side to make sure that they look the same. I bet this is OK however; I bet what you probably did is that you didn't put the spacers on the rear axle back where they belong.
If you look closely at your rear axle, look at each of the nuts that you tightened and loosened. Right next to each nut is a spacer. Make sure that each spacer is on the inside of the bike frame, and that neither spacer is on the outside. Look closely and really make sure of this. If either spacer is outside, loosen the nuts and try again. The wheel will be difficult to install with both spacers inside the frame, but it's supposed to be a tight fit. You may have to bend the stays a bit with your hands while installing the wheel inside the dropouts (with the spacers inside the frame again, of course). Looking from behind the bike at the rear axle, it should look like:
Left nut - Left dropout and frame - left spacer - hub and wheel - right spacer - Left dropout and frame - Right nut.
Do not adjust the brakes after reinstalling the wheel. If you do, you will probably be correcting two wrongs to make a right, and your wheel will be crooked. Instead, make sure the wheel is installed correctly. If you have any doubts, take it to an LBS and ask them not to just install the wheel but to show you how to do it right, and you'll never have this problem again. Good luck.