Painting Wheels.....

Wash with soap and water. Use an air compressor to blow of all the water and to get Into the cracks. Use a tach cloth afterwards to get all the extra dust.
When spraying do t get to close. Don't put it on too thick either. When you have something with all those angle like a rim I like to spray certain areas with quick small bursts so you don't cause any runs. Don't be afraid to do a few coats. Going to thick and trying to cover all in one shot and u increase chances of runs
Don't spray some in a plac where you spray wd 40. WD-40 blows silicone dust particles that will never truly leave an area. 10 years later and you can still get fish eyes.
Make sure your suface is prepped well. If you don't your paint will fail earlier and more hardcore. Don't be afraid to get meticulous prepping. Just go easy Painting. Make sure coats are nice and dry between coats. If not dry and u put fresh paint t over it u can cause some more issues.