Abuse (and a lot of it) may be the case for this mode of failure since I cannot see any other damage on the scoot. I have not yet seen this kind of damage/failure on Japanese brand.
I am looking to up size my scoot to 200-250cc range. Since offerings from Japanese manufacturers are limited and pricey, I was thinking of going for Kymco or Sym, which are from our friends in Taiwan. I may look closer to Kymco for now.
By the way, I have a lot of respect to them (Taiwanese) than I have to other neighboring countries to my home land for their helping hands to Tunami victims.