Across the 1978 and 1979 model years, the Honda CB 400 A motorcycle has a listed wet/running weight of 416.7 lb (189 kg).
Honda CB 400 A weight overview
This is middleweight territory: substantial enough to feel planted, but still well short of heavyweight touring and large-cruiser mass.
Middleweight Motorcycle
How heavy is the Honda CB 400 A?
wet weight
Using a model-level wet weight comparison, the Honda CB 400 A is heavier than about 70.8% of 36 Honda allround models with compatible weight data.
Ready-to-ride weight
Bike + rider total weight
These totals use the model’s representative wet weight. They exclude riding gear, luggage and a passenger.
Honda CB 400 A weight & related specs
| Model years covered | 1978, 1979 |
|---|---|
| Wet / running weight | 416.7 lb (189 kg) |
| Engine displacement | 395 cc |
| Power | 27 hp |
| Fuel capacity | 3.43 US gal (13 L) |
| Full-tank fuel weight (estimated) | 21.4 lb (9.7 kg) |
Weight changes by model year
Useful weight calculations
| Horsepower per 100 lb | 6.48 hp / 100 lb |
|---|---|
| Pounds per horsepower | 15.43 lb / hp |
| Displacement per pound | 0.95 cc / lb |
| Weight per 100 cc | 105.5 lb / 100 cc |
| Fuel weight as % of bike weight | 5.1% |
What the weight numbers tell you
Honda CB 400 A weight FAQ
How much does the Honda CB 400 A weigh?
The available wet/running figure is 416.7 lb (189 kg). This is more representative of the motorcycle you actually push, park and ride than a dry-only specification.
How does the Honda CB 400 A weight compare with similar Hondas?
It is on the heavier side. Its representative wet weight is around the 71st percentile among 36 compatible Honda allround models.
Are all Honda CB 400 A model years the same weight?
The supplied comparable weight values do not show a meaningful change across the 1978-1979 years covered here.
What does a full tank of gas weigh on the Honda CB 400 A?
A full tank works out to about 21.4 lb (9.7 kg) from the listed 3.43 US gal (13 L) capacity. Actual fuel density varies slightly, so treat it as a practical estimate.
What does the Honda CB 400 A weigh with a 180 lb rider?
The approximate combined total is 596.7 lb (270.6 kg) with a 180 lb rider, based on the representative wet/running weight used on this page.
Is the Honda CB 400 A strong for its weight?
The calculated range is 6.48 hp per 100 lb. This ratio is usually more informative for acceleration comparisons than horsepower alone. That places it around the 53rd percentile within the compatible Honda allround power-to-weight comparison.
What is the Honda CB 400 A displacement per pound?
The model has about 0.95 cc per lb in the available data. This simply shows how much engine displacement there is for each pound of motorcycle weight.
What is the Honda CB 400 A weight difference versus the category median?
The representative wet weight is about 97 lb (44 kg) heavier than the median Honda allround weight of 319.7 lb (145 kg) in this dataset.
Is the Honda CB 400 A easy to move around by hand?
The number is manageable for a road bike, but you still notice it when parking, making tight low-speed turns or catching a lean. On the move, chassis balance can make it feel lighter than the scale suggests.
Motorcycle specifications can vary by model year, market, equipment and the exact dry/curb-weight definition. Calculated fuel-weight and ratio figures on this page are estimates derived from the supplied specifications. Confirm critical figures in the owner’s manual or on the official Honda Powersports website.