Rhino, Pro-Tools 105-HD (typical rotary draw bender, I was a racecar fabricator in a previous life), 7/8" x 3" CLR.
Tubing is .060" 4130. Knurling was done on the lathe before bending.
The kid that will ride these is jumping off houses (literally) and other nonsense, keeps breaking and bending off the shelf parts... We'll see how these hold up.
Gabe