apparently they do, they are mounted on the bar when you pull the bar ends off and then the bar ends are mounted back into the handlebar. The problem with mine, is that I have Rizoma Bar ends. The rizoma bar ends and grips left about 1/2 of handlebar sticking out between the short rizoma grips and the bar ends, so I had to trim back the handlebar. Since I trimmed back the handlebar, there is none left to mount these mirrors, I would have to re-drill a locating hole for the controls on both sides and move everything inwards. To much trouble for me, and I already ordered a set of Rizoma Radial Naked Mirrors. These were never mounted to my bike, the previous owner had them on his ST4, and could not see around his bags/panniers, so he took them off. I was so excited when he offered them to me, I paid for them before I even tried them on my bike. Oh well that will teach me to be compulsive shopper!I thought they were supposed to fit on stock bar ends, don't they?
If they do, I'm interested.