hi i recently was lucky enough to get a 1967? Schwinn mens beachcruiser. Rims toast so i bought spiffy new blue ones. The old tire size was 26x1.75 so that is the rim size i bought. The back rim fits fine but the front hub is too narrow for the fork********** Why???? What did i do wrong? How did i buy wrong thing and how do i fix .i.e. replace hub in rim? Bend fork??? Dang i thought i had it right the back one looks so great.