neither. dk is horrible in my opinion. i hate the way their bikes feel, plus their really heavy. as far as diamondbacks, i think their still good, but theyve went down in quality alot. if i were you i would get a wtp, a kink, or a haro. but only the fourm lite series. look on dansomp.com and never, ever buy eastern anything. edit: holy shit dude i just looked at that diamondback. that is a shit bike haha. you cant get a quality bmx under 300 anymore. believe me if you go with that you will be sorry.