Well the hydraulic disk brake assembly looked like a bomb went off inside and I wasn't sure how to replace brake pistons, assembly, etc., so I took it to the bike shop. They called me and said yeah, it blew up and took everything with it, including the disk. The bad news is they can't get parts for it this year. With Covid there is such a boom in bicycling that nobody can get parts anymore.
Also, he said the fork seals were shot. Didn't I know they needed replacing every 100 hours of riding? Also, chain.