Originally Posted by
seedsbelize
I did change the crank, but just from a Silstar double to a 105 double, and from a cup and cone bb to a sealed bb. The LBS told me it was a function of sealed vs old school. It's just got me flummoxed that those two widely different lengths seem to produce the same chainline. No problems with the chainstays, which I was also concerned about.
Ah, I think it has way more to do with your cranks than whether they're sealed or cup-and-cone. The Silstar has dead-straight arms that require a long BB spindle for everything to clear...
...while the 105's I'm imagining are curved inward for more foot clearance, allowing a shorter spindle for the same chainline.
