In 2004 I had a vertabre replaced in my neck c4/c5. I have a metal plate with 6 screws that hold it in place. My experience was that time takes time. The doctors told me that many things that I used to do like playing basketball and lifting weights, I would no longer be able to do. My experience was that time takes time. 3 years later in 2007 I got back into the Gym. 10 years later and I have never been more physically fit. The doctors were wrong. I never stopped believing in myself. You have time, the rest if your life in fact. Enjoy the moment you have now. You will be back on your bike soon enough. We are only limited by what we believe to be impossible