Wow! Glad you're still in one piece. I have a rebuilt metal reinforced ankle as well, from a crash 7yrs ago at HPR at the end of the back straight. Even with PT and good painkillers, I live daily with the pain of arthritis and about 90% range of motion. But you learn to adapt and keep on going. My previous office job was actually worse for my ankle due to long periods sitting. Movement actually lessens the stiffness and aches. +1 on the bicycling and/or hiking. As for riding, I had my doubts as well, until the day I sat on my bike and turned the key. Ride or not, best of luck in your continued recovery.