I'm looking for one of those electronic devices that measures your speed, distance, calories burnt and gives you an average of all of those. I see them at sporting good stores ranging from $20 to $100+. What is a good one or brand to get, and are they really that accurate?
It takes a lot into consideration like aero position on bike, ave wind speed that day, type of tires etc. They have a free trial version (limited time) It is not shareware. I've been using it for 3 years. You can use it to track every ride, your weight, bike repairs and more. I found it very useful.