HONDA CB750 Four K (1979-1980) Specs, Performance & Photos

In 1980, the Japanese motorcycle manufacturer launched the Honda CB750 Four K, a naked machine part of the CB series that came in two color schemes, such as Candy Muse Red and Excel Black, but also with a separate taillight assembly and a chrome bracket.

The instrument cluster featured a speedometer with a 135 kph (85 mph) limit resulting from a 749cc DOHC four-cylinder engine coupled to a five-speed manual transmission and a chain final drive.

In addition, the CB750 Four K was fitted with standard features, such as a chromed exhaust system with two mufflers on each side, a one-piece dual seat with a passenger grab handle, a round headlight, a wide handlebar, an analog instrument cluster, a black-finished steel frame, and wire-spoke wheels.

For suspension, the bike packed a telescopic fork on the front and dual shock absorbers on the rear, while a 275 mm disc handled the braking performance with a hydraulic caliper on the front wheel and a 180 mm drum braking unit on the rear wheel.

As for performance, the 1980 Honda CB750 Four K took its muscles from a 748cc four-stroke four-cylinder air-cooled engine fueled by four Keihin carburetors and delivered an output power of 77 hp with maximum strength at 9,000 rpm and 65 Nm (48 lb-ft) of torque available at 7,000 rpm.