The Honda CB450 was a standard motorcycle part of the CB series in Honda's range manufactured from 1965 to 1974 and powered by a 444cc DOHC straight-twin engine that developed 45 hp.
In 1968, the Japanese motorcycle manufacturer launched the Honda CB750, which was an updated version of the previous model that came with several visual and technical improvements.
The 1968 CB450 featured a redesigned fuel tank, rubber-gaitered front fork instead of the sliding metal shrouds previously used, a five-speed manual transmission, and twin speedometer and rev-counter instruments mounted above the headlight.
For suspension, the bike packed a two-way adjustable telescopic fork on the front and two adjustable shock absorbers on the rear, while the braking performance was handled by a drum unit both front and rear that provided optimum stopping power.
In the power department, the 1968 Honda CB450 was unchanged, still powered by the 444cc four-stroke parallel-twin air-cooled engine that delivered an output power of 45 hp with a peak at 9,000 rpm and 37 Nm (28 lb-ft) of torque available at 7,000 rpm.
In addition, the bike came equipped from the factory with standard features, such as wire-spoked wheels, a one-piece dual seat, a round headlight with a chromed ring, a wide handlebar, an analog instrument cluster, a black-finished steel frame, a center stand, and a chromed dual exhaust system.