The mount sits in front of your Zipp stem

A unique high-volume

Exaggerated chevron pattern on sides for great grip

which makes it compatible with the majority of bike computers and smart watches on the market

The machined steel tool bits are now longer and introduce our Black Anti-Corrosion technology for superior corrosion resistance

WAHOO RPM Speed Sensor mechanical The mount sits in frontThe 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 data on both smartphones and bike computers. Tracking speed data has never been this easy.