Seriously, soap and water works best as long as it is very low pressure. I had been using some shampoo in the soapy spray but now I stick to Dawn Professional 1-00 because of its high suds. This stuff is highly concentrated so cut it back 1-15 with water. Rinse. Then you can lube the chain with MucOff drylube. I always remove the battery before washing. Be gentile.So Muc Off makes a nanotech bike cleaner, a waterless wash and a ebike waterless wash. Finish line also makes an ebike wash of some sort, but seems more of a aerosol than a pump spray handle.
Does anyone have experience with some of the “ebike” products? I want to order on Amazon. High powered air from my compressor did an ok job but needs to be better.
Might not want to do that as the hole might be there for drainage.Anyone silicone the hole in the frame under the controller? Wish I could find a grommet to fit, for waterproofing... Curious.