Garmin edge 520 gps with hrm cadencethe edge 520 is a gps bike computer that helps you compete and compare it offers in ride challenges through strava live segments reports cycling specific vo2 max and recovery time when used with power and heart rate and pairs with compatible ant indoor trainers for data display and control the edge is capable of tracking functional threshold power ftp wattskg and cycling dynamics when used with vector or vector 2 power meters and connected features