There's the brace on the rear too
I had a spare parts chassis, so I grabbed the one off it and put it on the front. I was planning to run wires across it.
On the wheels, I know I'll get heat for this, but I think the 501x/DB01 wheel attachment is horrible. The wheels on both my Durga and 501x wobbled as they spun. The shallow 10mm hex on front and pin into plastic on the rear is just a physically poor design. Yes, I know a zillion guys all over the world run that setup, I just don't like it. The 12mm machined hex adapters with DF03 wheels run way truer when spinning. Oh yeah, and the pins don't fall out when you take the wheels off
