Yeah I believe scoot1234 is right! I didn't follow the link, but I have read the same thing (re: history of Kymco) I believe they were the main producers of the honda dio series engines. When Kymco split from honda, simm was also born> I imagine the three of them rolicking around a big farm eating marshmellows and the like. That's why there is soo much confusion about cross over part fitment. (gy-6=zx50, dio50=zx50, ect). I am currently building an NC/50 Honda,Jessie James bicycle frame. Imagine getting parts for that. Especialy from the computer jocks at the order desk.