Designed using Octane's award-winning Body-Mapping Ergonomics and QuadLink drive, the club Pro4500 replicates natural movements like walking, jogging and moving backward. Exercisers will revel in SmartStride, the only interactive ergonomics that monitor their pace and direction and automatically adjust stride length accordingly. For even greater customization, an electronically adjustable stride length enables users to move from 18"–23" at the touch of a button.