I have a 08 crossbones in denim black.. regular Windex to clean or dish washing soap with water.. works great.. to wipe down use windex or a spray bottle with a few drops of soap & then add water.. works perfect

 

I have owned dozens of bikes that never saw anything but a garden hose. Wet the bike and use a wet towel to clean the paint surfaces. Rinse. Dry. It's really just that simple.

 

I have a Victory Highball with the rough, denim paint. To clean it, you need a bucket of hot water and two microfiber towels. Seriously, that's it.

Use a garden host to gently loosen any dust or crud. Next, dunk one towel in the water, lay it over one side of your tank. Let it sit for a minute if you have a lot of bug guts to loosen up. gently drag the wet towel off and back in the bucket it goes. Next, take your dry microfiber cloth, lay it over the same spot, and gently pull it back to dry the water spots.

Easy peasy.

No soap, no waxing, no shelling out cash for a wonder washer. Clean the rest of the bike like you normally would. Denatured alcohol is an excellent cleaner.