Well got my new trek 3900, and have noticed some rough shifting from my FD.
It shifts fine, until i hit the 5th or 6th gear in the back, and then it hesitates to go up or down to the second or third chainring.
I spent about 20-30 minutes riding around in circles trying to re adjust the barrel adjusters but havnt any luck.
I've also noticed that when im on the second or third chain ring, my RD doesnt shift as smoothly as it normally does. But i cant notice anything until about 5th or 6th (out of 8)
so i guess im just asking another annoying "help me fix this newb question" but heh, someones got to ask them eh? lol.