Broke my chiner handlebar today in half. So lucky I didn't crash. I can't even imagine how much worse it could have been. It just happened to fail coming out of a dip so I wasn't really pushing on it and was coming back uphill so going relatively slowly. This bar had 250 miles on it.
I have chiner handlebars on three of my bikes (Niner EMD9, Niner Jet9 RDO, and Chiner 062), and have over 1500 miles on them in total. For me, never again. I'm going with US bars only from US dealers and only bars that are new out of the box, so I can verify they are in fact real. I'm sure you can think of plenty of reasons why I broke this bar and shouldn't have, but never again for this guy. There are probably several chiner versions available that are high quality, but I'm not willing to conduct the quality control testing anymore with my own body! These bars were beautiful, super light, and cheap. But, not worth it. Today I ordered an expensive US bar to replace it, and it seemed like money well spent.
I've got 1000 miles on a chiner frame, and i do still plan to ride it, although I wonder if I can ever really trust it now. I'm done with chiner bars though.