Garmin Speed Sensor 2

Monitor your speed while driving with this easy-to-install wireless sensor.
This sensor is easy to install, maintain and move between bikes without magnets or other parts.
The Speed Sensor 2 can be attached to any wheel hub.
You can set the wheel size in our Garmin Connect™ online community or self-calibrate using an Edge® cycling computer or compatible Garmin device.
Once set, you’ll always get accurate speed and distance – even without a head unit.
ANT+® connectivity and BLUETOOTH® Low Energy technology lets you sync with Garmin Connect and other workout apps, compatible devices and fitness equipment to get better data while riding indoors and out.