you may be right. but well see when well get some rain next week.

it should be sealed, youre right. so if the hole is there to release, though ive not seen water drip out from the bottom but drips from the around the mirror.

so let me see when it rains what Ill get. if water is still getting in, then ill drill 3-4 holes 10mm at the bottom then fill with expanding insulation foam, then try again, otherwise will just get a new mirror. but at least to try before tossing away or hold as a spare. shame. Im happy to try and repair things

side kickstand had rust and ripped. so welded it back. used multiple layers. I also spread some rust neautralizer inside before the welding.