Transform your Rally XC100 into a dual-sided power meter pedal system and analyze more than just wattage. This way, you can determine exactly where in the 360° pedal stroke you generate the most power. When the upgrade pedal is paired with the Rally XC100, you get a complete Rally power meter pedal system that provides metrics for right/left balance and cycling dynamics. The power meter can even be reinstalled and used with Rally RS and RK pedals, ensuring you have performance data available on all your rides. Revolutionary cycling dynamics capture at which point in the pedal rotation you are producing power. Additionally, it displays the balance between left and right. See where force is applied on the pedal to ensure that your cleat is positioned correctly. It also tracks the time spent sitting and standing to help you understand how your position affects efficiency.