Madone 5.2 triple shifting problem..&..need advice on switching to double? - Page 2

Yes this is a correct assumption, and the essence of my chainline argument. One question to ask, and sorry If this is a duplicate...is this all stock equipment or was there an upgrade done to this drivetrain?

In looking at the specs on Treks site, I am convinced this is a chainline issue. I think these newer cranks/BBs push the chainlines out a bit at a glance. I am still running square tapers on my MTB with Raceface Turbines if that gives you any idea how far behind the times I am, but back in the racing day, chainline was critical for the middle to bottom shift. My wifes bike has an XTR derailluer so that it will shift properly, I could not get XT to work....

To answer your previous post, the bike is 100% stock. Except for the saddle and tires. Ultegra cranks/fd/shifters, DA rd.
I don't have enough experience to decipher the specs based on history, but it does seem like bringing the chainrings a tad closer to the BB would solve the issue (and create others?....). I wonder how I could accomplish that.

Steve

It sounds like you and skammer are on to something with the poor chainline theory. Four or five years ago I had a problem and was able to get some information directly from Trek. I don't know whether this phone number still works, or whether they would be any help now, but I have 1.920.478.4678 written down in my address book. I also have an Email address for Trek at consumer_help@trekbike.com.

Please let us know how you finally resolve the problem.