Locating Your Machine's Serial Number September 27, 2021 17:08 Updated Need assistance locating your machine's serial number? View our library of articles here: Locating Your Treadmill Serial Number Locating Your Elliptical Serial Number Locating Your Bike Serial Number Locating Your Rower Serial Number Locating Your Climber/Stepper Serial Number Related articles Locating Your Treadmill Serial Number Locating Your Elliptical Serial Number Locating Your Bike Serial Number What information should I be prepared to give to Spirit Fitness Service Department? Which CT800 Model Do I Have?