I read a few of those "help me buy a bike" threads and the YBR is heavily recommended, but cast wheels and a metal tank takes it immediately off the option list for me. Plus it's kinda heavy looking too. The Qingqi bike you mentioned looks like it has a 120kg weight, not sure if that's dry weight or wet. I think for a nice 200 class air cooled, 110kg would be more ideal. My Te250 is only 106kg dry, but then that's a race bike :p

I also found these:

http://motor.newmotor.com.cn/JH200GY5A2317/
http://motor.newmotor.com.cn/XY250GY2B5510/
http://motor.newmotor.com.cn/Z5zhan250huayouqiban5620/

The Shineray X2X seems like a nice bike but from what I understand it's based on the NX250, which is not a common bike in the US.