i installed new braking disc and new brake pads and when i spinn the wheel you can hear it rubbing/touching is this okay or is it not?
when pads have been fitted and new disc you should be able to throw the front wheel and it will spin round maybe half to a full rotation. disc pads are always in contact with the brake disc so sometimes you will hear a rubbing. over time it gets fainter as the pads and disc bed to each other. go for a short ride and stop and check they are not getting super hot and fully binding up to a locking point, also remember to leave a good amount of room infront of you, its going to take a good 100 miles or so before those pads bed in so you will find braking is not as good s it was before.