Nowadays, a CB400F in good condition is likely to fetch a pretty decent sum when changing hands, despite its modest power output digits. The exemplar shown in these photos belongs to the 1975 model year, and its analog counter displays less than 2,500 miles (4,000 km).
A few months ago, this old-school UJM saw its clutch plates serviced by the current owner, who’d also refurbished the carbs and replaced the fork seals. The CB400F is brought to life thanks to a 408cc inline-four powerhouse, which carries two valves per cylinder, a single overhead cam, and quad Mikuni carburetors measuring 20 mm (0.8 inches) in diameter.
This air-cooled four-banger can unleash 37 hp when the crank turns at 8,500 rpm, while a peak torque output of 24 pound-feet (33 Nm) will be accomplished at 7,500 revs. In order to reach the rear chain-driven hoop, the oomph travels through a six-speed transmission and a wet multi-plate clutch.
Were all the engine’s power to be called into action, Honda’s relic would hit a respectable top speed of 104 mph (167 kph). Suspension duties get carried out by 33 mm (1.3-inch) telescopic forks at the front and dual preload-adjustable shocks at six o’clock. For braking, the Japanese beauty employs a 267 mm (10.5-inch) disc up north and a 160 mm (6.3-inch) drum out back.
If you’d like to see this ‘75 MY CB400F Super Sport parked in your garage, then you’ll be stoked to learn that it’s searching for a new home as we speak! The no-reserve auction is taking place on Bring a Trailer, and you may feel free to submit your best offer before the afternoon of September 14, when the bidding process will end.