They thought it was time to crank you up???
How much time are you spending on the bike?
no I determine the resistance myself.
here is a you tube video of what a class is like.
[video=youtube_share;EWzTFaoCxkM]http://youtu.be/EWzTFaoCxkM[/video]
I can usually wring my shirt out from all the sweat.
class is an hour long. (I typically burn around 800-1000 calories per class) I wear a heart rate monitor to determine how much I burn. today I burned 975.