The ANT+ Bike Speed/Cadence Sensor: Everything you ever wanted to know | DC Rainmaker
A look at Garmin's new ANT+ Speed & Cadence magnet-less sensors | DC Rainmaker
Amazon.com: Garmin Speed Sensor 2 and Cadence Sensor 2 Bundle, Bike Sensors to Monitor Speed and Pedaling Cadence Bundle with Garmin Out-Front Bike Mount, Standard Packaging