I use this product often between my car and my bike and it works wonderfully. It takes a lot of time, effort, and patience however. You have to have an applicator pad and a clean microfiber towel to apply this polish. First you scoop up a small amount on your applicator and then you rub it onto the metal surface and you keep rubbing until the polish turns black. After the polish turns black, use your clean towel to wipe away the polish leaving a clean surface. It's best to work small areas at a time so that the polish doesn't harden on the surface. Here are some results.
The wheel on the left is polished and the wheel on the right is not. The wheel on the right has a very cloudy finish.
I made this photo extra large because after the polishing you can see the reflection of my tools laying on the ground in front of the wheel.
It usually takes 2-3 hours to polish this bike. That includes the frame, front forks, exhaust pipe, and wheels.
You can pick up Mothers Mag & Aluminum Polish in general auto parts stores. Autozone carries the 5oz size for $5.99 and the 10oz size for $8.99.