HONDA CB400N (1977-1978) Specs, Performance & Photos

The Honda CB400N was a motorcycle in part of the CB series manufactured by the Japanese motorcycle manufacturer Honda from 1978 to 1986. The bike had a similar look to the 250N version but was different with its larger capacity engine, dual brake disc on the front, and halogen front headlight.

Also, the instrumentation panel featured different markings for the rev counter and speedometer, which reflected the higher top speed and the lower rpm red line, but also, along its production run, it featured several revisions.

The 1978 CB400N came with standard features, such as cast aluminum wheels, a one-piece two-up seat, a wide handlebar, an analog instrument cluster, a black-finished steel frame, a chromed dual exhaust system, and a center stand.

For suspension, the bike packed a telescopic fork on the front and dual EVO shock absorbers with five-way spring preload adjustment on the rear, while the stopping power was handled by two 239 mm discs with hydraulic calipers on the front and a 152 mm drum unit on the rear.

In the power department, the 1978 Honda CB400N had its soul brought to life by a 395cc four-stroke parallel twin air-cooled engine fed by two Keihin carburetors that helped deliver an output power of 34 hp with maximum strength at 9,500 rpm and 29 Nm (21 lb-ft) of torque available at 8,000 rpm.