Joined: Nov 2010
Posts: 15,315
Likes: 903
From: Tixkokob, Yucatán, México
Bikes: 79 Trek 930, 80 Trek 414, 84 Schwinn Letour Luxe (coupled), 92 Schwinn Paramount PDG 5
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.