Like lexus is a fancy toyota and eunos a fancy mazda, 8fun would be good to preserve for their better offerings like the cst and 750w mid drive. Leaving the Bafang name for the 250w stuff. Basicly, they could charge a premium for the 8fun name.
I have a lot of bafeng stuff here. Not bafang, bafeng. They are both global names and would do better separating themselves than confusing me further.
I like in infinity idea. That would be good in china, they could really relate to the whole story.