What category is the 1981 Benelli 900 Sei?

The 1981 Benelli 900 Sei has a Category of Classic.

What is the engine size of the 1981 Benelli 900 Sei?

The 1981 Benelli 900 Sei has a Capacity: of 905.00 ccm (55.22 cubic inches).

What type of engine does the 1981 Benelli 900 Sei have?

The 1981 Benelli 900 Sei has a Engine type of In-line six.

What is the engine power of the 1981 Benelli 900 Sei?

The 1981 Benelli 900 Sei has a Power of 80.00.

Is the 1981 Benelli 900 Sei air cooled or liquid cooled?

The 1981 Benelli 900 Sei has a Cooling system of Air.

How many gears does the 1981 Benelli 900 Sei have?

The 1981 Benelli 900 Sei has a Gearbox of 5-speed.

How much does the 1981 Benelli 900 Sei weigh?

The 1981 Benelli 900 Sei has a Weight incl. oil, gas, etc of 249.0 kg (549.0 pounds).

What is the top speed of the 1981 Benelli 900 Sei?

The 1981 Benelli 900 Sei has a Top speed of 193.0 km/h (119.9 mph).

Benelli 900 Sei - 1981 Specifications and Reviews

Name: 1981 Benelli 900 Sei
Brand: Benelli
Rating: 5 (2 reviews)

The 1981 Benelli 900 Sei is a distinctive Italian classic powered by a rare 905cc inline-six engine producing 80 horsepower. Its smooth, refined character and compact dimensions make it ideal for riders seeking vintage sophistication and mechanical uniqueness. Best known for its engineering innovation and collectible status among enthusiasts of 1980s motorcycling heritage.

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1981

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General information
Category	Classic
Year	1981
Model	Benelli 900 Sei

Engine and Transmission Specifications
Transmission typefinal drive	Chain
Gearbox	5-speed
Cooling system	Air
Fuel control	OHC
Valves per cylinder	2
Bore x stroke	60.0 x 53.4 mm (2.4 x 2.1 inches)
Compression	9.5:1
Power	80.00
Stroke	4
Engine type	In-line six
Capacity:	905.00 ccm (55.22 cubic inches)

Physical measures and capacities
Weight incl. oil, gas, etc	249.0 kg (549.0 pounds)
Benelli 900 Sei dimensions and frame
Rear brakes	Single disc
Front brakes	Dual disc
Rear tyre dimensions	120/90-18
Front tyre dimensions	100/90-18
Speed and acceleration
Top speed	193.0 km/h (119.9 mph)
Other specs
Maintenance	Find parts, fluids, filters, maintenance tools and service items on eBay
Fuel capacity	17.00 litres (4.49 gallons)

Performance Profile & Rider Fit

80 hp

Peak Power

5.2s

0-60 mph

119.9 mph

Top Speed

Best For

Track30%

City45%

Cornering50%

Daily Riding50%

Touring55%

Passenger55%

Rider Profile

Best For	This bike suits an experienced rider who appreciates classic, mechanically intricate machinery over modern performance.
Purpose	It was built as a prestige grand-touring roadster, showcasing an exotic in-line six engine rather than chasing outright speed or agility.
Rider Fit	At around 249 kg with an air-cooled six-cylinder engine and dual front discs, it demands a confident, moderately strong rider for slow-speed maneuvering.
Character	The 900 Sei is a charismatic, smooth-running collector's classic prized for its unique engine sound and engineering rarity rather than aggressive handling.
Not Ideal For	It is not suited for riders seeking modern sportbike agility, off-road capability, or high-speed track performance.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.