GARMIN GI 275 ENGINE SENSOR KIT ONLY | California Power Systems
Garmin Spares Kit for GSC 10 bike sensor - 010-10729-00 | BIKE24
Garmin Bike Cadence Sensor 2, Wireless Sensor that Measures Pedal Strokes per Minute with ANT+ Connectivity and Bluetooth Low Energy Technology, Black : Amazon.co.uk: Sports & Outdoors