Garmin Speed sensor 2 & cadence sensor 2 - measurement and storage of speed, cadence, distance via ANT+ or Bluetooth LE. Mount on wheel hub. : Amazon.co.uk: Sports & Outdoors
GARMIN (NL) | Bike Speed Sensor 2 and Cadence Sensor 2
GARMIN (NL) | Bike Speed Sensor 2 and Cadence Sensor 2