Will the P1 need to be calibrated? There is no extra needed calibration when installed. Related articles Can I manually zero or auto zero the P1 pedals? What do I do if my power pedals go out of calibration? How do I update my firmware or my dual ANT+/BLE PowerCap? What Mobile Devices Does PowerTap Mobile Support? What's the difference between how ANT+ and Bluetooth read data from the P1 Pedals?