Garmin Speed Cadence Speedometer Bluetooth Cycling Sensor Ant+ Internal Rotation Track For Garmin Edge 130 Plus 530 830 1030 - Bicycle Computer - AliExpress
Best Buy: Garmin Speed/Cadence Sensor for Select Garmin GPS Receivers 010-10644-00
Garmin Edge 1040 GPS Bike Computer Bundle, On and Off-Road, Spot-On Accuracy with Speed and cadence sensor, HRM-Dual monitor and Wearable4U E-Bank Bundle - Walmart.com