My wife just got an e-bike, and she needs a mirror. Unlike the handles on my own bike, hers don’t have end plugs that can be removed for bar end mirrors. The problem is that a handlebar-mounted mirror for an e-bike has to contend with the mounted display for the motor that’s already where you’d normally attach the mirror. Is the solution just to cut out the end of the existing rubber handle to put in a bar-end mirror? Or is there a bar-mounted mirror that can go much closer to the center of the bar between the display and the stem, with a much longer arm (and a circumference big enough for the larger thickness near the stem)? I think this explains the problem clearly enough, but ask for clarification if not.