I think I killed it. The ride a few days ago , my rear brake gave me a “ OK I’ve had enough “ groan really bad pulling into the fruit stand. I think it’s time to start collecting parts to repair/replace/rebuild. Real short ride today to verify its passing. I must have roasted it , sounds similar to a EV that metal dragging on metal sound. I know it’s not metal on metal unless the lining crumbled to dust , not likely. Big brake up front is used to covering rear brake or lack there of. I’m listening if anyone has a solution other than replacing rear hub/brake. I have a few ideas.