Hey guys, check out my sig.. I just upgraded my son to a YZ250F. He is 14 yrs. old, about 135 lbs., 5'10". I am 6'1", 245 lbs. This weekend we take the bikes to Ocotillo (desert riding, no dunes). I am sure we will try a drag race in the sand. Who do you think will win? I rode that YZ250F in the street when I was test driving it from the buyer. It is much faster than I thought. The weight difference may make the difference. My 426 is pretty fast though. I will let you guys know what happens next week!! Any expert opinions?