I serviced the rear caliper and changed the pads this morning. Viewing the pads from the rear of the caliper, they appeared to be about 2 mm thickness. The minimum is 1 mm, so I figured I had a couple of thousand miles left in them, and I almost didn't do the job. Luckily I decided to go ahead, because once I got them out I realized they were finished. Apparently the view from the rear of the caliper is misleading. They were down to within a fraction of a mm of the wear grooves being completely gone.
I would have made a video and taken pictures, but I didn't bother because there is already this, which is excellent: https://www.youtube.com/watch?v=x_lHZPbSJ_s&t=5s The rear caliper service start 5:30 into the video.
I would have made a video and taken pictures, but I didn't bother because there is already this, which is excellent: https://www.youtube.com/watch?v=x_lHZPbSJ_s&t=5s The rear caliper service start 5:30 into the video.