Originally Posted by Nan Cyclist

Jean, re rpm. You can get a cheap cateye or other computer at any cycleshop and even ask them to install it for you. It will record distance, time, rpm, mph, avg speed, and maybe a couple of other things depending on your model. It is helpful to know your rpm. You can also get heart rate monitors on line to see if you are staying in the recommended zone of 60-80% of your maximum heart rate.