The garmin gms070 bike speed sensor and cadence sensor kit can be used alongside most edge computers as well as the fr610 and fr70 series watch units in order to monitor your pedalling performance and speed with these easy to install wireless sensors the speed sensor attaches to the hub of either wheel and self calibrates with your garmin cycle computer to give you accurate speed and distance readings at all times whether you39re indoors riding your turbo trainer or out on the roads the cad