My son and I are looking for a couple of bikes to just ride trails and play around on. We both are big guys. He is 16 and 5'10" 220lbs and I am 45 6' 250lbs with 31" inseams so we are short legged. He has never rode a bike and I have ridden some. My question is, which of these bikes should we get? My son is looking at the 2009 KLX250S and I like the way it sits but it seems too soft for a dirt bike or a bike for riding trails with my weight. We both like the wr250f we just don't know which one we should go with.