So My original RK oem, went to 16,900 miles before the first link of redust popped up, and it had about 5 adjustments, so it was pretty much done. I replaced it with a $180 heavy A$$ Regina(larger than oem), and that thing died before ten thousand miles, from failure of the Zrings, which imo are crap. So I went with cheaper oring version of Regina on the following two or 3 chains, they lasted about the same but they were only about $100 in price. The I tried the DID vm oring and it failed before 10,000 miles.
Now we come to the DID VM xring. That chain got exactly the same milege as the OEM 16,900, and its first sign of Reddust coming out of a link, the difference it had only a couple of adjustments on it, so not stretched out of spec.
But Im still running that DID xring chain now at 22,000 miles, just cutting out the orings as Links freeze up( about 1/2 dosen so far), and its not stretching, but soon I'll have to replace it.
But if looking for a chain that Meets and exceeds the OEM, set the Bar at the DID VM xring.