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Amazon.com : Magene S314 Cadence/Speed Sensor for Cycling, Bike Wireless ANT+/Bluetooth RPM Cadence/Speed Sensor Compatible with Phone APP and Bike Computers, Sports Watch Like Garmin, Onelap etc. : Sports & Outdoors
GARMIN speed Cadence speedometer Bluetooth cycling sensor ANT+ Internal rotation track For GARMIN EDGE 130 PLUS 530 830 1030 - AliExpress
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Garmin Bike Speed Sensor 2 | Cycling | Authentic | ANT+ | Bluetooth | Road Bike 753759222536 | eBay
A look at Garmin's new ANT+ Speed & Cadence magnet-less sensors | DC Rainmaker