We went to the mountains today and drove the 2021 honda pioneer 700 around for almost 50 miles through rugid logging roads with tons of dust and very steep hill decent. The new Yoursme brand ceramic brake pads I installed on the rear did a wonderful job of braking and made absolutely no grinding, squeaks, or any noise all day. This definitely is the answer to rear brake grinding noise on the honda pioneer 700. It seems people have had this issue on the pioneer 700 for years. Honda should be spending a few more bucks and putting better brakes on at the factory. This is my first honda and they definitely didn't do a good job of impressing me with quality. The factory pads they installed are junk.
I bought these brake pads on amazon for front and back for $32. They are rated almost 5 stars. I hope this helps other frustrated people with the horrible brake grinding in the rear as seen on the YouTube prior on this thread.
Thank you