I am hardly new to BF, but new to this thread (DOB 1949). I am posting this in the category of "how I dealt with some cycling specific, age related pains" (in case it is helpful to others). For reference I ride anywhere from 120 to 240 miles per week (roadie, but not a racer).

1) I have osteoarthritis in both knees, although the left knee is far worse on X-Ray/MRI. Oddly it is the right knee that back in 2016 started to ache about an hour into a long ride. I ended up with one of those high end lateral stability braces (complicated plastic and metal with hinges, etc). And I started getting hyaluronic acid injections (once every 6 to 12 months). I am pretty close to knee pain free when I ride (and I now get injections in both knees). My ortho doc is adamant about me keeping my activity level up, but not running on hard surfaces. He also said that he has seen X-Rays not as bad as my left knee (the less problematic one in my case) who literally could not walk up stairs. You never know about this stuff. He also said that hyaluronic acid has, in his experience, a success rate of around 60%.

2) I was getting a relatively severe pain in my right wrist, to the point that after an hour of riding I had trouble shifting. I could not believe this worked, but this went away completely when I changed to riding gloves with really good padding and got off my Gatorskin tires and dropped my air pressure a bit (unfortunately 23/25 mm is all the room I have in my bike).

In case this helps anyone.

dave