Will the P1 need to be calibrated? Philip Cowles March 30, 2018 19:18 Follow 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 set my crank length on a Garmin Forerunner 920XT? Are the P1 pedals compatible with Garmin's cycling dynamics? I lost my pedal washers. Can I get replacements? Comments 0 comments Please sign in to leave a comment.