I purchased an old Schwinn road bike frame for next to nothing but it appears the rear is not exactly straight. When I install my 10sp Shimano wheel (it requires about 6mm of spreading to fit), the tire is completely centered around the brake mount but will nearly rub the non-drive chainstay toward the bottom bracket.
Where in Southern California can I get this checked out and possibly straightened? Even better, would there be a way to check and do this myself? Just tweak until the wheel is straight?