Across 5 covered model years from 1986 to 1990, the Honda CB 450 S motorcycle has a listed wet/running weight of 407.9 lb (185 kg).
Honda CB 450 S weight overview
This is neither unusually light nor extremely heavy. For most riders the practical weight question is more about seat height, center of mass and low-speed balance than the scale number alone.
Middleweight Motorcycle
How heavy is the Honda CB 450 S?
wet weight
Using a model-level wet weight comparison, the Honda CB 450 S is lighter than about 59.2% of 49 Honda naked bikes 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 450 S weight & related specs
| Model years covered | 1986, 1987, 1988, 1989, 1990 |
|---|---|
| Wet / running weight | 407.9 lb (185 kg) |
| Engine displacement | 447 cc |
| Power | 44 hp |
| Fuel capacity | 4.76 US gal (18 L) |
| Full-tank fuel weight (estimated) | 29.6 lb (13.4 kg) |
Weight changes by model year
Useful weight calculations
| Horsepower per 100 lb | 10.79 hp / 100 lb |
|---|---|
| Pounds per horsepower | 9.27 lb / hp |
| Displacement per pound | 1.1 cc / lb |
| Weight per 100 cc | 91.2 lb / 100 cc |
| Fuel weight as % of bike weight | 7.2% |
What the weight numbers tell you
Honda CB 450 S weight FAQ
How heavy is the Honda CB 450 S ready to ride?
Listed ready-to-ride weight is 407.9 lb (185 kg). The year-specific section above shows which years use each figure where the supplied value changes.
Is the Honda CB 450 S heavy compared with other Honda naked bikes?
It sits fairly close to the middle of the category. Its representative wet weight is around the 41st percentile among 49 compatible Honda naked bikes.
Does the Honda CB 450 S weight change by model year?
Not in the usable weight data on this page. Across the covered 1986-1990 years, the supplied weight figure remains the same where comparable values are available.
How much does the Honda CB 450 S fuel weigh?
The listed tank capacity is 4.76 US gal (18 L). Using approximately 0.745 kg/L gasoline, a full tank is roughly 29.6 lb (13.4 kg). That is an estimate for fuel mass, not an official Honda curb-weight calculation.
How heavy is the Honda CB 450 S with an average-size rider?
A 180 lb rider brings the simple bike-plus-rider total to roughly 587.9 lb (266.6 kg) using the representative wet/running figure. Gear and luggage would add more.
How much horsepower does the Honda CB 450 S have per 100 lb?
Where compatible power and weight figures are available, it works out to 10.79 hp per 100 lb. That places it around the 34th percentile within the compatible Honda naked bike power-to-weight comparison.
How large is the Honda CB 450 S engine for its weight?
Engine displacement relative to bike weight is 1.1 cc per lb. It can help compare motorcycles from very different displacement classes without relying on cc alone.
Is the Honda CB 450 S above or below the typical Honda naked bike weight?
The model sits about 28.7 lb (13 kg) lighter than the compatible median Honda naked bike weight used on this page.
Will the Honda CB 450 S feel heavy at low speed?
It is most likely to feel heavy while stopped, backing up or on a slope rather than once settled at normal riding speed. Seat height and center of gravity matter a lot.
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.