yes thats why i wanted to know if its a good idea to change the crank set. but i do and i do also want to change the stem on it so i can get a fatter bar in there cause his one is uncomfortably small. But i do like my bike very comfortable with it.

and this might sound weird but what kind of seats do you all recommend. I have heard alot about brooks. but problem i have is that i keep riding off the seat. i think its because the seat is tilted. but its also not very comfortable on my back side. What do you guys use?