Polar Power Output Sensor WIND

All of the drive force of the bike is transmitted entirely through the chain, allowing the Polar Power Output Sensor W.I.N.D. to calculate watts accurately. The sensor positioned on the rear pulley works magnetically and measures the speed of the chain. The chain stay sensor (power sensor) calculates the tension of the chain by measuring the vibration as the chain passes over the sensor. The Polar Power Output Sensor W.I.N.D. also has a built-in cadence sensor. The information is then transmitted to the Polar CS600 cycling computer, which is mounted to a bike mount on the handlebars.

Polar Power Output Sensor W.I.N.D. is easy to install. It is suitable only for road bikes, ridden on tarmac. It is not suitable for mountain bikes or bikes with very complex back forks.

How does Power Output help cycling?

With regard to training it can give much more precision than heart rate and perceived exertion. Power meters also have a number of other uses, including working on bike position and determining efficiency at different cadences.