Garmin-SpeedCadence-Bike-Sensor-GSC-10-fEdge-Forerunner-eTrex-30-Foretrex-401-GPSMAP-0 Published October 20, 2014 at 500 × 500 in Garmin Speed/Cadence Bike Sensor (GSC 10) f/Edge®. Forerunner® eTrex® 30. Foretrex® 401. GPSMAP®