B&M 701 Left Side E-Bike Mirror
The Busch & Muller 701 Mirror was specifically designed for ebikes. With mounting on the left side handlebar, you can be certain that you won't be snuck up on by pesky traffic before you see it.
The mirror plugs into the end of the handlebar and is tightened with an Allen bolt, and the mount pivots on a vertical axis just outside of the handlebar. You can swing the mirror around, and when put back into its normal position, it will click into proper alignment. The inside diameter of the handlebar must be at least 16.7mm. The long dimension of the mirror is 115mm.
Great for recumbent trikes, this mirror also folds in for transport.