At some point the focus should become overall health/injury prevention/range of motion. Whatever you can do to accomplish that. Some form of stretching routine such as yoga should be the cornerstone of that. It will enable you to do the other things with less chance of injury. For the OP, adding 5-10lbs of muscle might hurt the bike climbing performance, but add a few more years to your life/active life. You're at that point where moving a piece of furniture could cause a long, nagging injury.