what about the tube?
okay, so I know my shiny new headset will fit my old fork and all that, but how do I know if it'll all fit in the head tube of the frame I'm using? I've read over sheldon's site and it's just not clicking in my head.
Also, I couldn't find info on bottom bracket/crank set compatibility/measuring so I have no idea what kind/size cranks/bb's I need. Thanks!