Originally Posted by
jackbombay
The old raleigh 3 speeds had a 71mm wide BB shell too, but my 1972 Raleigh 10 speed had a 65 mm wide BB shell, uhhhh, industry standard is 68mm guys? Well, I'm not sure when 68 became standard, but Raleigh is all over the map with BB shell widths...
Frames are often butchered by the guy in charge on facing the BB's in shops. They get used to shaving x amount of turns off a BB without bothering to actually check before it's too late. Human nature in a production environment.
I watched it happen to a high end EL-OS frame as the mech talked on a cell phone while facing. The BB had to have spacers inserted on drive side to compensate for the error.