What I did was to do rock climbing (bouldering to be specific) - Usually, rock climbers are very strong upper body and it is a very interesting sport. What is great about rock climbing and cycling is that keep your weight down helps your performance in both sports - which is a plus.
But don't expect to win any championships because increasing size in the other half of your body increase weight - so it is a compromise, but, if you look at my picture, you can understand why I am not worried about that.
Unless there is an old geezer category....