First time Chiner here.. looking for feedback on the FM-009.  Honestly I'm just nervous about quality.  Of course, I'm in the US, so the there are all kinds of silly stories out there.   I personally own a rebranded chiner (Sette Razzo Carbon), which I read is the cs-057?  In any case... the FM-009 is for my wife.. and I just watched a review of a flyxii where the seattube was too big for the suggested 31.6 post.  Any thoughts???