Agreed re; The BM shop, but if you need to know stuff
and their parts were always well priced, we have BM Motorcycles in Ringwood similar but a lot more professional, BMW have been known to consult these blokes. I do like the look of your 'K' but lean to twins and I am on my third, and last.
Greg.
I hope that your son enjoys his bike, I rode one at a launch (Broardford R/Track) mighty and usable.
P.S. I have used Motobins in the past.