I'm having trouble with my trek 1000c i've watched a couple of youtube videos about derailer maintenence. And while i learned a lot nothing ever happened no matter what i did. Both the gears were at the smaller gears. But recently just fidgiting with what i learned from youtube. I got it to shift to the middle cogs in both the front and the back. But now it won't shift up or down. I've checked my chian alignment and it seemed fine. but then again i check it on the cross over gears cauce i couldn't get it to shift to the higher gear on the front.
So i'm guessing by the youtube comment you guys can tell i'm new at this. So a bit of patience would help thanks :-D