Stay in tune with your bike with the Wahoo RPM Cycling Speed Sensor. Attaching to your front wheel hub, this magnet-less system captures real-time speed data with ease. Coming in all black, the device is sleek and inconspicuous when installed. The Wahoo Speed Sensor uses Bluetooth Smart and ANT+ dual band technology. With it, you can connect the device to your smartphone or bike computer and see your metrics in real time. In addition to the technology, the Wahoo Speed Sensor remains lightweight at only 7 grams and won’t interfere with your ride. It also has a universal fit to be compatible with any bike. The battery life of up to a year ensures it will deliver on every ride. Finally, with an IPX7 rating, it’s waterproof up to 5 feet to go wherever you go.