Well done you, if you get into a good routine the weight will drop off you whilst toning at the same time!! I had a spinning bike at home but all good intentions went out off the window and it was used more for hanging my ironing on. I enjoy going to the spinning classes though as you challenge yourself more with people around you. I find that when I used to run, I didn't need to be challenged but have some good fast paced music blasting in my ears and enter the zone.
Hope you enjoy it!!!
Janet