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 get the P1 pedals to work with a Garmin head unit? Are the P1 or Single-Sided power pedals be user-serviceable? I'm having trouble connecting to my power meter to the PowerTap Mobile application. What should I do?