What is the bike that you work out on called?

What is a bike that doesn't move called? Like the ones that are at the gym. You pedal, but they don't go anywhere.

I usually go over my 40 minite bike riding and go for 2 hours of flat out bike riding. Is tha over working out? and if so, w...

Is there any work outs, types of runs, or sports that can boost my staminaa,

How do they work, and what exactly do they do?

does that ab belt achully work? you know that contoar belt?

Should I work out more or am I fine(normal)?

is running up and down stairs a good work out? if so, how many should I do a day?

What's the most amount of kilometers/miles you ever drove on a bike in one day? Mine's 31 miles.

I have been wanting to try this new diet...its called Alli does anyone know if it really works or not?

if I ride a bike every day for 45 mintutes 2 work on my butt will it work?? && if I petal standing in sted of sitting on the ...