Originally Posted by DRTBYK
It has come to my attention that the Touratech Mount for the Montana Series can be configured for either the Landscape or Portrait position. You will need to do a little disassembly/assembly to make the switch but none the less it is doable.
Below is the original Landscape setup:
And, here is the re-configured Portrait setup:
Just make sure that you have clearance for the "clamshell" to open and for the Key to be used in either case.
In the portrait you will need spacers on top of rubber isolators and longer bolts for fixing the spacers.
Otherwise you have no clearance for vibration and the set up doesn't work as designed.
Especially, if you accidentally bent the back plate while fastening it.