ay what all kinds of wheels from other bikes will fit out klx250? i just need a decent wheel to throw on there now until i get my black excel rims....im ultimately going for a KLX meets KTM look...i got the orange scott grip...in the end i have a feeling i might be winning some awards....hehe..

Found this
http://www.kendausa.com/_includes/conversion.html

will a 95-06 kdx rim fit?

TT has one in the classifieds for $120

The kdx rim will work (at least for the back) and I think that is the right year range. I used bike bandits site to cross reference part numbers for the hub at the time.

What about the front? 80 or 90? Which one is closer to stock tire?

My stock front was a 3.00 X 21, so mathematically, the 80/100-21 would be the closest in width (76.2mm)

don't forget the tube retainer chock thingy....
 

Since you are running low pressure, get those chock tube reatining thingies and install them. Keep ya from spinning the tube out.