Yeah I saw that too. You can't order anything from their site because it's jacked up with some FedEx error. I also read bad things about Helio and people ordering from them and not getting there stuff or getting it way late.I'm aware of that. I was opining on the minimum engine a TAV would work with. I actually have a HF79 and was thinking about selling it.
Anyway, I found a 4G if you're still interested: http://heliobikes.com/store/Parts/4-Stroke-Parts/4G-T-Belt-Parts/4G-T-Belt-Drive-Honda--p189.html
Why can't I find any horror stories about the TAV2 and the Huasheng anywhere online? That's what I want to know.