To ensure the seat glides smoothly over the main support rail, Kettler have created a roller system that passes over both the rail itself and two metal bars underneath. Out of all of the rowing machines we just mentioned, this has the benefit of being the quietest, as you’re simply working against the force of electromagnets. The Kettler Coach M also offers a simple way to choose one of the 10 different levels, which is by adding a simple hand wheel just below the console, within easy reach of your rowing stroke. We’ve already seen water used in the ProRower and WaterRower designs, and a damper and flywheel with the Concept2, but this is the first rowing machine we’ve reviewed that uses magnetic resistance. One of the most interesting things about reviewing high-end rowing machines over any other type of cardio equipment is that many of the models use completely different resistance systems.
