RPM Cadence Sensor Protective Equipment Pro Penn Marathon is the

Pro Penn Marathon is the official ball of PTR because of its guaranteed longevity

Innovative sliding dropout allows quick wheel installation

Breathable surface

The yellow foam sponge removes glue residue from the surface of the wood

For less float

RPM Cadence Sensor Protective Equipment Pro Penn Marathon is theThe Wahoo RPM cadence sensor is your sleek little solution for measuring cycling cadence data. It is wireless, magnet less, lightweight, and easily mounts to your bike's crank arm or to your shoe. Bluetooth Smart and ANT+ dual band technology allows you to connect to and display data on both smartphones and GPS bike computers. Collecting cadence data has never been this easy. Bluetooth 4. 0 Smart enabled Sensor is easy to install & connects wirelessly