Use a quality "car wash" detergent, rinse with fresh water.
Compresed air blow down to remove all water , then wipe down with soft cloth and "Mr Sheen". Don't spray directly onto the bike, if it gets on the brakes, they don't like to stop.
Stays sparkling for ken ages, also makes it easier to get any bugs off, they don't stick as hard to the mr sheen film.
