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    There are a range of factors that can affect your cycling speed. Obviously fitness is one of them, however, weather conditions and the varying gradients of the road play a huge part too. The most advanced way of measuring how these factors affect your performance speed is with the aerodynamic Wireless Polar CS speed sensor.
    • Measures your current, average and maximum speeds
    • Track your average speed to see your progress and performance improve
    • Light yet tough, and easy to attach

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