I have seen some references to knee braces from time to time. I have a painful right knee, which is from basketball many decades ago. It is not the type of injury that will get worse by using it, but it is painful. I have considered a knee brace, so I wanted to know if anyone has recommendations as to the type or brand or whatever for a knee brace. Is there one that works well with the repetitions of the knee flexing on a bike?