Some cone CVT models use two rollers.[23][24] In 1903, William Evans and Paul Knauf utilized for the patent on the continually variable transmission employing two parallel conical rollers pointing in reverse directions and linked by belts that would be slid together the cones to vary the transmission ratio. Yes, CVTs https://zioncufnz.blogcudinti.com/32750288/5-essential-elements-for-gearbox-cvt