3-Brothers exhaust/brake line contact!
I just noticed this on my rear brake line. I bought the single-side 3-brothers exhaust (I know, i know......why?). Well because I wanted something temporary until I could afford a Sato set-up, and I got this off another member for cheap. But anyway, upon inspection this is what I found. so for any of you guys with the same set-up, check your rear brake line.
Apparantly, the pipe gets too close to the brake line, and upon compression, it makes contact with the line. I haven't noticed this before, but this last week, I've ridden with a passenger on the back seat, and maybe the extra weight compressed the bike enough to make contact.
Scary, but at least it's the rear brake and not the front!