In 1975, the Japanese motorcycle manufacturer launched the Honda CB750 Four K6, a standard motorcycle part of the CB series in Honda's range, sold only in 1976 and available in one color scheme, such as Candy Antares Red.
The bike featured instrument faces in light green, the side covers were smaller than on the K0 model without slots on the leading edge, a chromed upper fork, the white pinstripe on the fuel tank was wider than on the K3 model, a black headlight housing with a round headlight, and taillight and turn signal larger than the K1 model.
Also, the bike featured a two-cable operated throttle with one pulled to open and one pulled to close, a four-into-four exhaust system with four mufflers, and a four-cylinder air-cooled engine linked to a five-speed manual transmission.
In addition, the bike came equipped from the factory with standard features, such as an analog instrument cluster, a chromed dual exhaust system with two mufflers on each side, a dual seat, a wide handlebar, a center stand, and wire-spoke wheels.
As for power, the 1975 Honda CB750 Four K6 packed a 736cc four-stroke four-cylinder air-cooled engine fueled by four Keihin carburetors that helped deliver an output power of 67 hp with maximum strength at 8,000 rpm and 60 Nm (44 lb-ft) of torque available at 7,000 rpm.