Honda US90

Osamu Takeuchi designed the US90, a three wheeled recreational vehicle, whose development started in 1967 after American dealers asked for products to sell in the off-season for motorcycles. It created the three-wheeled all-terrain cycle market and was renamed ATC90 and then ATC110 as its engine grew, remaining in production in developing form until 1985. The article calls the ATC125M its fourth generation, which has its own pages. This site lists a page for every model year in the span covered here, each focused on what changed in that year, grouped into 3 generations: the first generation US90 (1970 to 1973 model years); the second generation ATC90 (1974 to 1978 model years); the third generation ATC110 (1979 to 1985 model years). Each year page links to its generation, to this model page, to the previous model year and to Honda. The article dates the first generation 1970 to 1973, the ATC90 1974 to 1978 and the ATC110 1979 to 1985.