In 1969, the Japanese motorcycle manufacturer launched the Honda CB750, a motorcycle part of the CB series, powered by a four-cylinder air-cooled engine and manufactured over several generations from 1969 to 2003, as well as 2007.
The CB750 was included in the AMA Motorcycle Hall of Fame Classic Bikes, was named the "Greatest Motorcycles Ever" by the Discovery Channel, was in The Art of the Motorcycle exhibition, and was in the UK National Motor Museum.
In 1970, Honda released the CB750 Four K1, which was sold between 1970 and 1971 and available in one of four color schemes, such as Candy Ruby Red, Candy Gold, Valley Green Metallic, or Candy Garnet Brown.
The fuel tank featured a gold stripe, while the tank, side covers, and upper fork were painted with basic colors, such as Red, Gold, Green, or Brown. Also, the side covers were smaller, without slots on the leading edge.
The headlight housing was also painted in basic colors, the exhaust was a four-into-four system, and the throttle featured two cables, one that pulled open and one that pulled closed.
In the performance department, the 1970 Honda CB 750 Four K1 had its heartbeat set by a 737cc four-stroke four-cylinder air-cooled engine fed by four Keihin carburetors that helped deliver an output power of 67 hp with maximum strength at 8,000 rpm and 60 Nm (45 lb-ft) of torque available at 7,000 rpm.