Naked Motorcycles
1981Honda CB 750 C
21 fields on record
The 1981 Honda CB 750 C is a classic cruiser that appeals to riders seeking comfortable, accessible performance. Its air-cooled 748cc inline-four engine delivers smooth power and a top speed of 176 km/h, making it ideal for both highway cruising and everyday riding. Known for reliability and timeless styling, this bike established Honda's cruiser legacy.
- Capacity
- 748.0 ccm
- Engine
- In-line four, four-stroke
- Gearbox
- 5-speed
- Wet weight
- 253.0 kg
- Seat height
- Not on record
Know it? Add it → - Power
- 77.0 HP (56.6 kW) @ 9000 RPM
What’s new for the 1981 Honda CB 750 C
vs the 1980| Spec | 1980 | 1981 |
|---|---|---|
| Power | 72.0 HP (53.0 kW) | 77.0 HP (56.6 kW) @ 9000 RPM |
| Top speed | — | 176.0 km/h (109.4 mph) |
| Front brakes | Single disc | Dual disc |
| Rear brakes | Expanding brake (drum brake) | Expanding brake |
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Designed as a stylish custom cruiser that blends relaxed cruising comfort with a genuinely sporty four-cylinder engine underneath.
- Built for
- A charismatic early-80s Japanese custom bike that pairs cruiser attitude with the smoother, higher-revving character of an inline-four rather than a V-twin.
- Not ideal for
- Not a good fit for riders seeking off-road capability, aggressive sport-bike cornering performance, or a lightweight, flickable city commuter.
Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.
Engine
- Capacity
- 748.0 ccm
- Power
- 77.0 HP (56.6 kW) @ 9000 RPM
- Engine type
- In-line four, four-stroke
- Power/weight ratio
- 0.3043 HP/kg
- Bore x stroke
- 62.0 x 62.0 mm
- Compression
- 9.0:1
- Cooling system
- Air
- Fuel system
- Carburettor
- Starting
- Electric
- Valves per cylinder
- 4
- Torque
- Not on record - add it
Transmission
- Gearbox
- 5-speed
- Transmission type
- Manual
- Final drive
- Chain
Performance
- Top speed
- 176.0 km/h (109.4 mph)
Dimensions & weight
Brakes & wheels
- Front brakes
- Dual disc
- Rear brakes
- Expanding brake
- Front tyre
- 110/90-19
- Rear tyre
- 130/90-16
Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.
What changed, year to year
Differences highlighted| Specification | 1980 | 1981 | 1982 | 1983 |
|---|---|---|---|---|
| Capacity | 748.00 ccm (45.64 cubic inches) | 748.00 ccm (45.64 cubic inches) | 748.00 ccm (45.64 cubic inches) | 748.00 ccm (45.64 cubic inches) |
| Fuel capacity | — | 16.00 litres (4.23 gallons) | 16.00 litres (4.23 gallons) | 16.00 litres (4.23 gallons) |
Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.
Rider Reviews
Common questions
What is the engine size of the Honda CB 750 C?
The 1981 Honda CB 750 C has a Capacity of 748.0 ccm (45.65 cubic inches).
What engine power does the Honda CB 750 C have?
The 1981 Honda CB 750 C has a Power of 77.0 HP (56.6 kW) @ 9000 RPM.
How many gears does the Honda CB 750 C have?
The 1981 Honda CB 750 C has a Gearbox of 5-speed.
How much does the Honda CB 750 C weigh?
The 1981 Honda CB 750 C has a Wet weight of 253.0 kg (557.8 pounds).
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