Have not done anything yet as far as a bar mounted rear break. I did find a guy that says he would help me do it and has some experience with this type of set up. Just spent $800 reworking some of my custom parts. I have spent a lot of money setting this bike up for me to ride, but I don't get to ride much, do to not wanting to ride by myself. My situation is different than most. Truth is I am starting to get frustrated and not sure it's worth the hassel.