I had an xr80. and thought it was nice. but after trying out some 2 strokes, i was hooked. If your not very good and dont do motocross or any jumping get the xr, a wonderful bike to learn on. I you will do any motocross at or any jumping get the KX60. In terms of speed and power the kx will blow the xr away, you cant even compare them in tearms of power. I say it depends what you plan to do, motocross, wide open areas, jumping get the kx. Tight trails get the xr.