Vortex has 135mm rear wheel axle. AC Aero 3 comes with 130mm. How did you use it on this trike?
The BB7 gets on my nerves with its rattling and squeaking. I prefer Formula F1 carbon level breaks with 2-parts rotor (red center). Except that: nice trike
I had problems assembling the form. After looking at a picture of a cuboctahedron it was easy.