Positioned in Honda's allround motorcycle lineup, the 1977 Honda CB 400T features a 395 cc (24.1 cu in) air-cooled twin, four-stroke configuration. In factory specification, peak output is rated at 34.2 HP (24.9 kW) at 9,500 rpm while maximum torque reaches 28.5 Nm (21 lb-ft), transferring power to the rear wheel through chain final drive. With a specific output of 86.6 HP per liter, the engine character is indicating a tractable, stress-free state of tune focused on everyday usability and broad torque delivery.
On the scales, the CB 400T measures 177 kg (390 lbs) wet (curb), translating to a power-to-weight ratio of 0.19 HP/kg (5.18 kg per horsepower). Rider ergonomics and chassis geometry center around a 800 mm (31.5 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance, combined with a 1,389 mm (54.7 in) wheelbase engineered for quick, flickable steering geometry. The 14-liter (3.7 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 175 km/h (109 mph).
Specific Output
86.6 HP/L
Power-to-Weight
0.19 HP/kg (5.18 kg/HP)
Standover Height
800 mm (31.5 in)
Engine
Displacement395.0 ccm (24.10 cubic inches)
Engine TypeTwin, four-stroke
Power34.2 HP (24.9 kW)) @ 9500 RPM
Torque28.5 Nm (2.9 kgf-m or 21.0 ft.lbs)
Compression9.3:1
Bore x Stroke70.5 x 50.6 mm (2.8 x 2.0 inches)
Fuel ControlSingle Overhead Cams (SOHC)
IgnitionElectronic
CoolingAir
Transmission
Final DriveChain (final drive)
Performance
Top Speed175.0 km/h (108.7 mph)
Chassis
Frame TypeDiamond
Front SuspensionTelescopic fork
Rear SuspensionSwingarm Twin Shock Absorbers
Wheelbase1389 mm (54.7 inches)
Wheels & Brakes
Front Tyre3.60-19
Rear Tyre4.10-18
Front BrakesSingle disc
Front Brake Ø282 mm (11.1 inches)
Rear BrakesExpanding brake (drum brake)
Rear Brake Ø153 mm (6.0 inches)
Dimensions & Weight
Weight incl.177.0 kg (390.2 pounds)
Seat Height800 mm (31.5 inches) If adjustable, lowest setting.
Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.
Power
Compare engine output with similar motorcycles if acceleration, highway use or two-up riding matters.
Torque
Torque is useful for judging real-world pull, especially for touring, commuting and loaded riding.
Seat Height
Check the seat height against your inseam and riding posture before choosing a motorcycle.
Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Suspension
Suspension details can matter for comfort, road feel and long-distance riding.
