Simple question before purchase

I can’t seem to find the answer to this question in any of the specs. What is the machine made out of? Being more specific, the “black” parts. I want to assume they are a cast aluminum, but I also don’t want to assume. Thanks!

Defiantly Aluminum but if its cast vs machined that is probably only something OF can answer. But its def Aluminum!


Machined aluminum. The tubes are hardened steel.


It is a thing of beauty behold–well machined, solid.