Newly Launched RepOne Connected Kratos Flywheel Device

Learn how to use the Kratos Quest products in your training.

Industry Experts


At Kratos Fly Fitness, we take pride in offering training plans that have earned the approval of renowned innovators in the health and fitness industry. While they are not directly affiliated with Kratos Fly Fitness, their expertise and support are invaluable in shaping the quality of our plans. We believe in guiding you towards your fitness goals with the wisdom of these key figures. Explore our expert-approved plans today!


Jay is a physical therapist, teacher, biomechanics researcher, + author in Bend, Oregon, USA. 

Jay built his international reputation as an expert in biomechanical analysis as Director of the SPEED Clinic at the University of Virginia, and as Director of an independent lab in Oregon.


Kelly Starrett  is a physical therapist, author, speaker and CrossFit trainer. His 2013 fitness book, Becoming a Supple Leopard, was featured on The New York Times bestselling sports books list. He is a co-founder, with his wife Juliet Starrett, of the fitness website The Ready State, formerly MobilityWOD. He has been described as a "celebrity" and "founding father" of CrossFit, as well as ranking on Greatist's 2017 list of the 100 most influential people in health and fitness