Sometimes tests of extremes can help you further. After the compact THYS 230 with 20 inch and 16 inch wheels it was interesting to know how two large wheels affect the speed and handling of the rowingbike. I suspected it to be fast and spend a lot of extra time on machining and drilling the footslider and the wedge housing of the CVT system. In the end, it turned out not to be fast and very unpractical.