Originally Posted by
surak
There's no way it can be permanently attached as both front and rear should be usable with either 160 or 140 rotors.
Edit to add: when I took my bike in for some work, my LBS said the pad retaining screw on my rear caliper was super tight, probably also seized. They replaced the screw for me so I didn't need a new caliper just to fix that issue.
That’s what I was thinking but not certain. I drilled out the rear screw about 6 months ago and just use a cotter pin but I think the front is leaking oil from around one of the pistons. When I went to remove the pads to look for oil residue that’s when I found the seized screw and the thought of replacing them both entered my mind.