That frame is the same as a hongfu fm258. There is plenty written on it here and on mtbr. I have a similar frame (fm058) which is very very similar, just a different top tube seat tube junction and non-boost, but otherwise identical geometry. It was also sold through pro-mance, and sissypants wrote up a fair bit of details out his - check out his thread on here. I am still riding mine, and am still super happy with it, have had great success XC racing on it.
Those other frames you mention are not the same frame.
Those other frames you mention are not the same frame.
