the bike

[jeffreypg64]

theres a bike at the club i work out with and im not sure if its right or not. its a stationary bike and i rode it for 15 mins on the hardest level there was on it (30) and it said i burned 400 calories. is the machine right or was i really going that fast?

 

[NBS 4life]

They are not much to go on. Your better to use proper calculators. It probably was off by a mile. Sorry to burst your bubble.