The pic above is of my mirror. I'd imagine a lot of the bar ends mount up fairly similar. I took off my grip and hammered that little gold piece in to the bar. Cut out a little dime size hole in the grip end and put it back on. The black bulky piece slides in to the grip hole and then bolts to the gold piece like it is in the pic. Then you either mount your mirror down like in the pic or mount it on the very end with a provided set screw.