Originally Posted by
Pars
Super Record (vintage)? They used 3/16" rather than the 1/4" (NR, etc.). Is the spindle asymmetrical?
not sure which you're referring to, i have several Record (SR are scarce and had Ti spindles if i'm correct) and they all use 1/4in balls.
i think OFG is right. bicycleclassics shows 3/16in bearings for C Record road and track BB's.
http://www.bicycleclassics.com/bottom.html