As one of the flag bearers of Garmin, the Edge 520 is one of the best bicycle computers out there in the market specially for riders who have a performance driven mindset for using a computer.

http://ejournal.upi.edu/index.php/WapFi/user/viewPublicProfile/128907

As one of many flag bearers of Garmin, the sting 520 is the most effective bicycle computers to choose from out there specifically for riders who have a effectiveness pushed attitude for utilizing a computer.