Naked Motorcycles
1981Benelli 654
19 fields on record
The 1981 Benelli 654 is a classic middleweight sport bike that appeals to riders seeking spirited performance in a manageable package. Its air-cooled inline-four engine delivers responsive power with a 190 km/h top speed, while the lightweight chassis and forgiving handling characteristics make it ideal for enthusiasts who value everyday ridability alongside weekend excitement.
- Capacity
- 604.0 ccm
- Engine
- In-line four, four-stroke
- Gearbox
- 5-speed
- Wet weight
- 210.0 kg
- Seat height
- Not on record
Know it? Add it → - Power
- 62.0 HP (45.6 kW) @ 8650 RPM
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- It's best suited to riders who want an authentic, classic in-line four experience for weekend rides, shows, and nostalgic touring rather than outright performance.
- Built for
- The 654 has the smooth, high-revving charm of a classic in-line four, delivering a refined and mechanically engaging feel rather than raw power.
- Not ideal for
- This is not the right bike for riders seeking modern performance, off-road capability, or long-distance touring comfort with advanced electronics and wind protection.
Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.
Engine
- Capacity
- 604.0 ccm
- Power
- 62.0 HP (45.6 kW) @ 8650 RPM
- Engine type
- In-line four, four-stroke
- Power/weight ratio
- 0.2952 HP/kg (wet)
- Bore x stroke
- 60.0 x 53.4 mm
- Compression
- 9.3:1
- Cooling system
- Air
- Valves per cylinder
- 2
- Torque
- Not on record - add it
Transmission
- Gearbox
- 5-speed
- Transmission type
- Manual
- Final drive
- Chain
Performance
- Top speed
- 190.0 km/h (118.1 mph)
Dimensions & weight
Brakes & wheels
- Front brakes
- Dual disc
- Rear brakes
- Single disc
- Front tyre
- 3.25-18
- Rear tyre
- 3.50-18
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 |
|---|---|---|
| Capacity | 605 cc | 604 cc |
| Fuel capacity | 15 L | 15 L |
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 Benelli 654?
The 1981 Benelli 654 has a Capacity of 604.0 ccm (36.86 cubic inches).
What engine power does the Benelli 654 have?
The 1981 Benelli 654 has a Power of 62.0 HP (45.6 kW) @ 8650 RPM.
How many gears does the Benelli 654 have?
The 1981 Benelli 654 has a Gearbox of 5-speed.
How much does the Benelli 654 weigh?
The 1981 Benelli 654 has a Wet weight of 210.0 kg (463.0 pounds).
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