In another life time,I was a keen enduro/trail rider and also used the bikes for commuting.
XR 250 4stroke,great trail bike,reasonable commuter(the tyres are grippy,they just squirm a bit). It was ok in enduros…until I stalled it,a devil to start when hot. (no electric start)Apparently there's a knack,which I never had.
I then moved to KDX 200s,dead reliable,dead rideable and no noisier than a 4 stroke. I had my second one for four years,had some great results in tough Welsh Enduros. Never let me down once,no piston/piston ring change.But I did maitain well……and I sold it for £100 less than I bought it for 4 years previous. The bast bike I ever owned( and I had a few too many)
Not convinced with the integrity of KTMs all my mates switched to them,lovely to ride,but loads of random failures,including bottom end woes!!