my factory ktm speedo is changeable-doesn't help you though as mine is the factory unit from '04
it will likely still have both if its stock as so many euro countries are metric.
If you get the manual 4 it there is a few pages on which buttons to hold how many times etc. for changing the settings and features.
It should be an easy item to check out, my 2003 LC4 converts to either metric or imperial with the push os a couple of buttons. Ask the dealer or the owner to check for you prior to purchasing.