Should I get a 450 four stroke or a 250 four stroke dirt bike. People say a 450 will kill me and have way too much power for someone my size. I am 5"11' and weigh about 160lbs. (I bench 210 if that means anything) I'll probably only be getting bigger probably too. Im a senior in highschool and am 18. The type of riding I do is mainly in our local riverbed(sand) and on dirt out on our farm. I never race and am never on a MX track. I will possibly be going to the dunes. I own a 2005 Banshee and have some dirt bike experience. I use to have one before my Banshee and both of my cousins who are basically just like me have 250's and I ride them quite a bit too. So its not like dirt bikes are new to me. But I will say I got a lot to learn. Won't be jumping for a while. I just want a 450 is cuz I hear they last longer and I won't grow out of its power. I say that if I know my limits on a dirt bike then whats the harm of a 450, right? Idk, you tell me. Thank You!