Last night I took my old frame and planned to lightly fasten my old 9-speed bottom bracket and cranks in the hope of moving slightly toward assembly of the future TT bike. For some reason, I could not tighten either the left or right side of the bottom bracket much more than one revolution before it started to bind up. I did not dare try and force the issue at all for fear of damaging the threads. I need to figure out why I cannot screw them in, though.