All our Vietnam guides tagged motorbike.
The Ha Giang Loop honestly: ride it yourself or take an easy rider, how many days it really needs, the licence and insurance question nobody wants to answer, and when the mountain weather makes it miserable.
Riding the Hai Van Pass: ride yourself or take an easy rider, how the luggage transfer works, what the road is actually like, and the insurance clause that decides whether you should do it at all.
Travel insurance for Vietnam, read properly: the motorbike clause that voids most claims, why evacuation cover matters in the mountains, and the exclusions worth checking before you buy.