HONDA CB750 Four K7 (1977-1978) Specs, Performance & Photos

In 1978, the Japanese motorcycle manufacturer launched the Honda CB750 Four K7, a standard motorcycle part of the CB series in Honda's range and their first four-cylinder roadster that revolutionized the motorcycle market with new standards of sophistication, user-friendliness, and reliable high-performance.

The innovative CB750 model, with its SOHC engine, five-speed manual gearbox, and front disc brake, changed the face of recreational motorcycling worldwide, while the 1977 CB750 Four K7 model was reintroduced when customers decided that they didn't like the CB750 F1 or CB750 F2.

The bike came with a tubular steel duplex cradle frame that housed a telescopic fork on the front and preload-adjustable dual shock absorbers on the rear, while the braking performance was handled by a 296 mm disc with a hydraulic caliper on the front wheel and a 179 drum braking unit on the rear wheel.

In addition, the CB750 Four K7 packed standard features, such as a one-piece two-up seat with a passenger grab handle, a chromed dual exhaust system with double mufflers, a wide handlebar, an analog instrument cluster, and wire-spoked wheels with aluminum rims.

In the power department, the 1978 Honda CB750 Four K7 took its muscles from 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.