I bought a Billet Caster / Camber Gauge from Longacre with the supplied magnetic adapter.
But i couldn't make a good enough setup with the magnetic base so instead i designed this adapter so it would fit tightly in the centre of my 13" minilite wheels.
Outside diameter is 67,2 mm, it might also fit other wheels.
I printed mine in PETG with 50% infill.
The author marked this model as their own original creation.