Treadmill Doctor Treadmill Running Belt for the Lifestyler Expanse 600 Model Number 297161 Review HelpfulOwl Treadmill Belts June 5, 2018September 2, 2018Exercise & Fitness, Exercise Machine Parts & Accessories, Sports & Fitness, Sports & Outdoors, Treadmill Doctor 0 Comment This is the replacement walking belt for the Lifestyler Expanse 600. Model Number: 297161.