Horizon Fitness T50 Treadmill Horizon Fitness Updated September 15, 2021 22:47 For the 2006 Horizon Fitness T50 Owner's Guide, please click here. For the 2006 Horizon Fitness T50 Exploded Diagram, please click here. Was this article helpful? Yes No 0 out of 0 found this helpful Have more questions? Submit a request Related articles When to Replace a Treadmill Belt 7.0 AT-03 Treadmill Operating Instructions Comments 0 comments Please sign in to leave a comment.