I was wondering what bike i should get. i am 6"2 almost 6"3 i weigh about 150. I was wondering if the yz125 would be to small for me, and if i should get a yz250 or a four stroke bike like the rmz250 or a yz250f? Any help would be appreciated and i am new to riding. i plan to go race so again ANY HELP WILL BE APPRECIATED. Thanks