I'm still pretty new to dirtbikes, so maybe you all can shed some light on this situation I'm having. I went out riding a few days ago and a friend and I swaped bikes for a while. I have an 03 YZ250, and my friend has a 2007 YZF450. What a difference!!! His bike handles 1000x better, it accelerates smoother, tracks straighter, and handles just about EVERYTHING better than my 250. Is it because it's a newer bike? Any help would be greatly appreciated, thanks.