I want a new bike for Running the forest roads here in az. I have a cr 250 I use for singletracking, I wanted something big and fast for wide open forest roads and to be dual sported for crossing sections of highway in between dirt..I was considering the wr 450 or ktm 525 but 7000.00 to 8500.00 for a dirt bike to me is just a bit un reasonable..I can pick up a near new xr 650 out of the trader and dump a grand into it and still be under 5500.00. The longevity of the 650 motor is also attractive..The higher revving bikes just dont last that long..The xrs are basically bullet proof..The weight concerns me but if Im not in the tight twisties it shouldnt be an issue.. How many miles are you guys getting out of a bike before rebuilding ?? Is a cooling fan neccasary,Do they overheat much?? I wanted a ds kit with an electric start,How much, and has anyone put one on?? How often are valve adjustments neccasary on these bikes?? Im 6'0 around 215 lbs , Is the suspension adequate or do I need to swap springs out?? I read a post elsewhere where someone put an e start with a pumper carb and it supposed to hot start a lot easier, any info on that?? Thanx in advance for any replies..