TheWahoo RPM Speed Sensor BT/ANT+easily mounts to your bike's front wheel hub, and the Bluetooth Smart and ANT+ dual band technology allows you to connect to and display data on both smartphones and bike computers. Tracking speed data has never been this easy. Wahoo RPM Speed Sensor BT/ANT+ Features Dual band technology Wireless connection Magnetless Sleek, lightweight design Speed measurement Hub mount Visible connection Replaceable battery Universal fit Wahoo RPM Speed Sensor BT/ANT+ Specifications Physical Dimensions (LxWxH): 1.25" x.75" x 1" Weight: 7 grams (without mount) Battery: CR2032 Battery Life: Up to 12 months Water Rating: IPX7 (waterproof...
Best Price: £29.99 from Leisure Lakes Bikes