Just saw this post on mychinamoto regarding the RX4. Of course, any time period discussed regarding China and the RX4 will be pushed back somewhat for those whose importers will need to emissions and road certify the bike, but it does give some vague time periods as to when we could possibly see these bikes (later 2018 is my guess and is a time period I think has been discussed before). Also, mentioned by the poster (a European ex-pat in China) is the test ride coming up in a few months, which I am guessing Joe Berk will be on. The person I am writing about goes by the handle 'prince666' and he has some photos. Scroll down to find it.
http://www.mychinamoto.com/forums/sh...en-450cc/page2