Originally Posted by
cyccommute
The Tiagra is a true diamond in the rough compared to the 105 and Ultegra. The more expensive derailers are pretty and they shift nice but they are a pain to set up because they are so narrow. I've found the same to be true with mountain bike fronts. The expensive ones are very nice but they will drive you crazy on set up.
I agree, a few weeks ago I changed the cable on my Tiagra FD and reset everything as I had screwed it up a bit at the end of last season--I was pleasantly surprised how easy it was setting it up (last fall I had been a bit of a doofus with it and mucked it up, the cable as well from tightening, loosening, tightening, loosening)
Found some online step by step stuff for setting up a fd and it worked like a charm, with the trim stuff working right on from the beginning.