[Black240SX]

For aluminum, I like Mothers Billet Aluminum polish, but there are other good ones on the market. Just stay away from ones containing ammonia as that is harmful to aluminum. You can polish aluminum and stainless steel as much as you want.

For chrome, you can use the same polish but don't get too aggressive as the plating is thin.

You can wash all parts of the bike, just don't spray with a lot of force around the gauges and controls.