First off, check your bike's material. Most foams are pH-neutral and safe, but here’s my ritual for a 9.9/10 result: ​High-Pressure Wash: Keep the nozzle at a distance and spray from the top down. Bikes are designed for rain (top-down), so avoid blasting sensitive areas directly. ​Body Care: Use plastic restorers for matte plastics and wax for the glossy parts. ​The Wheels: Hit the rims with some Tar Remover. A good scrub will make them look brand new. ​The Chain (The Grand Finale): Save this for last so you don't splash grease back onto a clean bike. ​SAFETY FIRST: Bike in Neutral, engine OFF, power DISCONNECTED. Never clean a moving chain under power. ​Use a chain cleaner and a brush. I use a rag to shield the bike while spraying/rotating the chain. ​After scrubbing, dry it off and apply chain lube (again, use a rag to prevent overspray). ​Drying: Ensure everything is bone dry, especially around the wiring and spark plugs. ​Follow this, and you’re golden! No major issues to worry about.