@rking7888 the 125x/re are very similar to the 230 with a few changes like ally swingarm, twin rads, headlight etc. I think that the 230 is the top of the range if you like
Regarding the frames the dt200wr was meant to be a soft-enduro and so the frame is borrowed (not 100%) from the yz's where as the 125/230 is a trail bike and used the dt frame from around '88 with only minor mods across its life span