Raindrop -
My heart goes out to you as you mourn the loss of your brother. I hope that your good memories of him will help you to get through your sorrow.
On the riding your bike front - I really believe that you should follow your heart, don't force yourself to do anything that you are not ready to do. One thing that may help is to use your bike as a memory tool. Go and ride, and use your ride as a quiet time to remember your brother. Don't push, don't train, just ride, remember, dream.
I'm sending healing thoughts your way.
--- Denise