Benelli 750 Sei (1976-78)

The Benelli 750 Sei is a motorcycle model that was produced from 1976 to 1978. It comes with a transverse six-cylinder, four-stroke, SOHC engine that has a capacity of 748cc. The bore and stroke of the engine are 56 x 50.6 mm and the compression ratio is 9.8:1. The bike is air-cooled and it has a wet sump with a cartridge filter for lubrication. The exhaust system is made up of 2 x 3-into-1-into-3 pipes.

For induction, the bike uses 3 x 24mm Dell’Orto VHB29 carburetors, and it has battery ignition (later electronic ignition) for ignition. The bike can be started using both electric and kick start. With a maximum power output of 52.9 kW / 71 hp at 8500 rpm, the Benelli 750 Sei has a wet multi-plate clutch and a 5-speed transmission. The final drive is through a chain.

The front suspension of the Benelli 750 Sei uses Marzocchi telescopic cartridge-type suspension forks (some models used Paoli!) while the rear suspension consists of dual Sebac shocks that are preload adjustable. It has 2 x 300mm discs and 2-piston calipers for the front brakes and a 210mm drum for the rear brakes. The bike has a 3.25-18 front tire and a 4.10-18 rear tire.

Other specifications of the Benelli 750 Sei include a length of 2197mm, a width of 762mm, a wheelbase of 1397mm, and a seat height of 737mm. The dry weight is 220 kg and the fuel capacity is 23 liters. The bike has an average consumption of 5.9 L/100 km and a top speed of 190 km/h. The standing quarter mile is achieved in 14.0 seconds with a speed of 148 km/h. Reviews comparing the Benelli 750 Sei to the Honda CBX and Kawasaki Z1300 can be found on the benellimotoclub website.

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Technical specifications:

Make Model: Benelli 750 Sei

Year: 1976 – 78

Engine: Transverse six cylinders, four stroke, SOHC, 2 valve per cylinder

Capacity: 748 cc / 46.6 cu in

Bore x Stroke: 56 x 50.6 mm

Compression Ratio: 9.8:1

Cooling System: Air cooled

Lubrication: Wet sump with cartridge filter

Exhaust: 2 x 3-into-1-into-3

Induction: 3 x 24 mm Dell’Orto VHB29 carburetors

Ignition: Battery ignition (later model electronic ignition)

Starting: Electric & kick start

Max Power: 52.9 kW / 71 hp @ 8500 rpm

Clutch: Wet multi-plate

Transmission: 5 Speed

Final Drive: Chain

Front Suspension: Marzocchi telescopic cartridge-type suspension forks (Some models used Paoli!)

Rear Suspension: Dual Sebac shocks, preload adjustable

Front Brakes: 2 x 300 mm discs, 2 piston calipers

Rear Brakes: 210 mm drum

Front Tyre: 3.25-18

Rear Tyre: 4.10-18

Dimensions: Length: 2197 mm / 86.5 in Width: 762 mm / 30.0 in

Wheelbase: 1397 mm / 55 in

Seat Height: 737 mm / 29 in

Dry Weight: 220 kg / 485 lbs

Fuel Capacity: 23 Litres / 6.1 US gal

Consumption Average: 5.9 L/100 km / 17 km/l / 40 mpg

Standing 1/4 Mile: 14.0 sec / 148 km/h / 92 mph

Top Speed: 190 km/h / 118 mph

Reviews: benellimotoclub – sei vs cbx vs z1300