Honda US90

Development began in 1967, in response to requests from American dealers for products to sell in the motorcycle off-season.

Takeuchi considered many variations before settling on a three-wheeled design with low-pressure ballon tires, driven by an enlarged Honda ST70 engine, through a 4 Speed Dual-Range Semi automatic clutched transmission.

The ATC prefix would be used for all Honda Three-Wheeled-Vehicles until production ceased in 1987, and become a universal epithet for other manufacturers three-wheeled machines.

This led to Honda developing traditional tire-and-rim designs in 1974, a feature continued on All-Terrain-Vehicles to this day.

The fourth evolution of the US90 would continue the previous trend of an increase in engine size, but also included the addition of Electric start.