The World's Best-Selling Rowing Machine The dependable performance of the Concept2 Model D Indoor Rower has made it the best-selling rowing machine in the world for over 40 years. Used by elite athletes for competitive training. the versatile Model D fits in as well in fitness facilities and home gyms as it does in boathouses around the world. The Model D fits your goals and your budget. offering a low-impact exercise accessible to anyone of any age.
