Cleaning an e-bike should not be that complicated, it’s just like cleaning a regular bike. Use a cleaning sponge, a hose and a bike cleaner. Don’t forget to reapply chain lubrication using dry lube. Avoid using pressured hoses to clean your bike. Wipe the battery and motor areas with the clean sponge, but you should not be afraid to get the electronics wet because they’re actually sealed and made to be weather- and waterproof.