What does a pro produce in HR, Power & speed while in the peleton? ever wondered? check this link?

skelders

http://www.highroadsports.com/velostream

sfoubister

There is also this one which I used last year:

http://www.srm.de/index.php?option=com_content&view=article&id=542&catid=44&Itemid=505&lang=en

for a different view...