Did my Orbea Avant this morning. Hand held wand, soft bristle or soft sponge type brush, Dawn detergent, rinse well, bounce up and a few times to remove excess water, point a fan at it to dry. If it is really bad, I get much of the crud off before bringing it inside, and I usually do the chain off the bike. Today was mostly grit and sand from being on a wet gravel road, so the chain stayed on and was wiped off and lubed after drying. I spray the shower stall with diluted bleach and rinse it. Also, I live by myself, ergo, I offend no one.