Cadence sensor attaches to a bikes crank arm.Bike speed sensor attaches to any bike's wheel hub.
COOSPO BK9 Cadence Sensor and Speed Sensor
Cinelli Ant Stem, Black, 60mm
ANT+ USB Enhanced Receiver Wireless Turbo Trainer ZWIFT WAHOO BKOOL
Elite Ant+ Dongle For iPhone/iPad and Apple Connector
ROCKBROS MTB Bike Computer Speedmeter M1 GPS Bluetooth Waterproof ANT+ Odometer
Coospo BC107 Bike Computer GPS Wireless Bike Odometer Speedometer Bluetooth ANT+
