Not too bad at least assembled by
http://www.nhtdmotor.com/ (WMI: LTZ ) . Branded as 田达 (Tianda）...in PRC . A subsidiary of Jianshe (which had a JV w/ Yamaha)
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Moto taxi jockey's (<$1k tagged) choice
http://www.motorfans.com.cn/forum.ph...=349381&page=1 Some ??? brand / The Real deal is carb & engine / Rest just not too bad standard parts...
Anyway direct fit 57.4mm kit are readily available to squeeze more power from it...