Much like the original RX4400, the smaller RX4405 APEX 2™ will shatter your definition of what a “workout” is. The one-of-a-kind engineering combines Ropeflex trusted progressive resistance technology with the ultra-effective cardiovascular benefits of an incline treadmill. Its versatile engineering is well-suited for beginner, intermediate, and advanced users, alike. APEX 2 provides a unique combination of ergonomic, natural, and functional movements as well as the benefits of low-impact weight-bearing incline training and continuous resistance. Used properly, APEX 2 is as safe as walking – but it is up to 3 times more effective than conventional resistance training and cardio combined!