Originally Posted by CV-6

Nope. 27.0 was often used in Metric 753. Depended on the size of the frame. My Raleigh Team Pro uses 27.0mm. Imperial 753, which was introduced around 1983, would be 27.2 or 27.4mm. It is more likely the amateur repaint caused a buildup or it is just pinched. So now I am wondering why I even posted the original comment.