From experience (painting cars too long basically) you'll need etch primer. Chromate etch primer helps adhesion of your 2k primer.
Try avoid etch from an aerosol can. When its applied from a spray gun its evenly applied and i feel you can get the product into the tight edges easier.
2 or 3 coats of 2k acrylic primer over your etch then you should be on the road to recovery

Quick tip; If your priming the wheels yourself dont force dry the etch primer (with a heat gun of by blowing air from the spray gun) it forms a skin on the top of the etch while its still wet underneath. If the 2k is sprayed over it then there is a big possibility your paint could peel off down the line. So leave it naturally dry
Hope this helps