Some cone CVT types use two rollers.[23][24] In 1903, William Evans and Paul Knauf used for just a patent over a continually variable transmission making use of two parallel conical rollers pointing in opposite Instructions and related by belts that may be slid along the cones to fluctuate the transmission https://holdenmnljg.vidublog.com/31800463/new-step-by-step-map-for-gearbox-cvt