The DNA wheels are a good deal but. The Warp 9 I think is better. DNA is about $500-$550 for a front and rear set. They do not have rotors or a sprocket. The Warp 9 set is about $750-$800 with rotors and sprocket. Rotors are $60-$100 each and a good sprocket is about $70. So, we could say you would spend another $270 on top of the $550 plus trying to mod the DNA KX 450 set to fit a KX 500. The Warp 9 are ready to go and have more color choices. So, after much deliberation, I think Warp 9 is a more economical way to go and they are pretty much the same quality as other economical sets.