They are not lighter than a demo! my m8 had a dark angel and sold it cus it was way too heavy and bought a demo. And yes it is damn heavy! it is made out steel! and they rust from the inside out! I like the look of the frame but they failed on the material.
well me and my m8 got a digital scale and quess what ! the demo what heavyer!!, and its not like it was made from cheap parts, this is a top of the line lightened in every way demo, to be honest, ill agree with you that there heavy frames, it just depends on how you build them up.
about 550-650?