Description: Capture all your cycling metrics with Wahoo RPM Speed and Cadence sensors. These sleek, wireless devices offer a magnet-free design for easy bike mounting. Dual-band Bluetooth Smart and ANT+ technology ensures seamless data display on smartphones and bike computers alike. Key Features: Dual Band Technology: Both ANT+ and BLE capabilities allow for a wireless connection to both smartphones and GPS devices Wireless Connection: No tangled wires on your bike to connect the sensor to your device Magnetless: The RPM speed installs easily with no magnets required Sleek, Lightweight Design: It only weighs 16.5 grams with the mount included Speed Measurement: Provides accurate speed data during your ride Hub Mount: Mount on any front wheel hub with a secure silicon casing Visible Connection: Two LED lights show the sensor's device connection (blue) and speed detection (red) Replaceable Battery Universal Fit: RPM Speed will fit with most bikes and frame sizes