Guys, got an issue with the rear brakes on my Conc. Have to push with all my might to get the pedal to go down. You can feel the breaks start to grab and they do release when you raise your foot. Could it be a crimped line? I just bought the bike today and haven't got it home yet to check it out. Kinda of strange. The guy said a friend put new pads in it.May be something he did. Anyway, awesome bike from what I've ridden it. Thanks in advance.