I got so many help from all of you and I would like to share also one of my old methods to clean the Chrome wheels of my Harley. I used it this morning after a 1200 km ride in very heavy rain from Birmingham to Hanover Germany the first time on the Morgan. The wheels were very dirty and the cleaning for all 4 tooks only 10 minutes.
What do you need:
1. Buy a soft bottle brush ( 1€ from Aldi) 2. Shorten the handle so that it fits in your cordless srewdriver 3. some wheel cleaner and water
It is realy helpful, no scratches when using soft brushes and ready with very good result in 10 minutes.