I am 30 yo, 5'11, 240lbs I have tons of mountain bike experience and I have ridden atv's and PWC's and what not. Looking into buying a dirt bike and have heard that 2 stroke's are a lot of maintenance every few hun miles and tho I am mechanically inclined I don't want to deal with that. Would be riding heavily wooded trails and wide open trails too as well as some ditch banging. I was thinking a 350 or 400? any input is greatly appreciated.