hey i have a 300ex and a z400 and a arctic cat 400 4wd and the 300ex is a good sport quad and i love to ride it in the hill and on trail around kentucky and i am a 50 year old man and the 300ex is grate. My son is 16 and he has a z400 and he loves it. but my quad will do anything his will do. Our quads ar hoped up the 300ex has jet kit,filter,FMF pipe and header, Dg nearf bars and bumper, and it will fly where we ride a boy has a 1999 warrior and it is all hopped up and my 300ex will smoke it. If i was a teenager i would look in to it is is a good quad to go slow or fast.