First of all removing brake dust can be so hard!!!
But we found an idea and want to give it a try :)
Step 1: Tools (as Always :))
Toothpaste and a soft cloath ;)
Step 2: #1
Put some toothpaste on the soft cloath and start cleaning the surface
Step 3: #2
When you get around get some clear water and sprinkle the rim.
Step 4: What We Promised :)
The best evidence is this picture!
Step 5: The End
You can clean all of your rims in 30 minutes and it's only cost a quarter of a toothpaste. We think it's worth it ;)
That's the ShiftyWay!!!