Busch & Müller also makes a less expensive mirror that also sits up a bit higher, the 801.
The 801 is available for left side as well as right side.
The 801 will also pivot when you hit, um, I mean, when the bus hits you. But the simpler mechanism requires you to re-aim the mirror. Takes about 15 seconds.
(#1) is the expander plug for attaching the mirror to the end of the handlebar.
(#2) is where you’ll find the head of the allen bolt to tighten the expander plug.
(#3) has a right-hand female thread into which is attached,
(#4) a special bolt with a right-hand male thread at the bottom end, and a left-hand female thread at the top.
(#5) is the mirror’s arm with a left-hand thread to enter (#4)
(#6) is a lock nut
(#7) is a rubber collar to make it all look nice
Since there’s a right-hand thread as well as a left-hand thread in that stack, if the mirror is bumped from the front or from the rear, it can turn free on its threads. Then you can just tighten it back by hand after a brief chat with the nice bus driver.
The long dimension of these mirrors is 115mm.
Inside diameter of the handlebar must be at least 16.7mm.
The 801 mirrors have a ball & socket joint for making small adjustments to the mirror’s alignment. If that should ever loosen up, it’s easy to fix. You just need a medium size philips screwdriver. See the photo of the forward facing side of the 801 mirror.