![Amazon.com : GEOID CS600 Cadence/Speed Sensor for Cycling, ANT+/Bluetooth Wireless Bicycle RPM Sensor Compatible with Bike Computers, Sport Watches, iOS/Android APPS : Sports & Outdoors Amazon.com : GEOID CS600 Cadence/Speed Sensor for Cycling, ANT+/Bluetooth Wireless Bicycle RPM Sensor Compatible with Bike Computers, Sport Watches, iOS/Android APPS : Sports & Outdoors](https://m.media-amazon.com/images/I/51QppoqYouL._AC_UF350,350_QL80_.jpg)
Amazon.com : GEOID CS600 Cadence/Speed Sensor for Cycling, ANT+/Bluetooth Wireless Bicycle RPM Sensor Compatible with Bike Computers, Sport Watches, iOS/Android APPS : Sports & Outdoors
![NEWBOLER Bike Speed Cadence Sensor ANT+ Bluetooth GPS Cycling Computer Dual Sensor for GARMIN Road Bike MTB Bike Accessories - AliExpress NEWBOLER Bike Speed Cadence Sensor ANT+ Bluetooth GPS Cycling Computer Dual Sensor for GARMIN Road Bike MTB Bike Accessories - AliExpress](https://ae01.alicdn.com/kf/Sd101ae0a5ddc4a23a3bca5f41f77fd97f/NEWBOLER-Bike-Speed-Cadence-Sensor-ANT-Bluetooth-GPS-Cycling-Computer-Dual-Sensor-for-GARMIN-Road-Bike.jpg)
NEWBOLER Bike Speed Cadence Sensor ANT+ Bluetooth GPS Cycling Computer Dual Sensor for GARMIN Road Bike MTB Bike Accessories - AliExpress
![What are these? And are they related? First 2 pics (Garmin) is on the crank arm and the second pic (Giant ridesense) is on the chainstay on the same side. : r/bikewrench What are these? And are they related? First 2 pics (Garmin) is on the crank arm and the second pic (Giant ridesense) is on the chainstay on the same side. : r/bikewrench](https://i.redd.it/pzoacvnndv681.jpg)