thank-you all for your answers, I am not sure that at this point it makes it any easier for me to leave at four am. It is not the getting up early that bothers me as I am a morning person andI wake up quite easily and mostly happy. It is the riding at four am by myself alone. Even when I leave at five forty to work there is not to much traffic I get about five cars in a four mile span. After that I get more but it is not a bumper to bumper type thing. I was always told never to ride in the dark. I think that is the idea that is bothering me most. When I do it for a commute to work, I can rationalize that but to go to a spin class that is a want not a need. I guess at some point(before this Friday) I will have to come to terms one way or another. I just can not see myself taking a spin class and getting there by car, when I would much prefer to ride my bike so biking to spin class seemed to be the answer.