Wahoo RPM Speed Sensor - The Wahoo rpm speed sensor is the sleek, magnet-less solution for capturing cycling speed data. It 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 on both smartphones and bike computers. Tracking speed has never been this easy

HIGHLIGHTS:

• Magnet less and sleek, lightweight design
• Hub mount and universal fit
• Visible connection
• Dual-band and wireless connection
• Replaceable battery