Polar Speed Sensor W.i.n.d. + Dual CS500 Bike Mount:

The speed sensor kit W.I.N.D. and Dual Lock handlebar includes a speed sensor which measures light and aerodynamic cycling speed and distance, and a handlebar that is easily placed in the handle or the power of the bike providing a clear display of the data for the training.

Measures your current, average and maximum

Interference-free data lets you evaluate and analyze your performance more accurately

Easy to install on the handlebars or the power of the bike

Ensures a firm grip on your cycling computer