The Benelli 750 Sei was a 6-cylinder motorcycle produced in 1974-75. Its engine was a transverse 4-stroke with 2 valves per cylinder and a capacity of 748cc. The bike had a compression ratio of 9.8:1 and was cooled by air, with an exhaust of 2×3-into-1-into-3. The Sei had a maximum power of 52.9 kW/71 hp at 8500 rpm and a 5-speed transmission with a chain final drive. It had a Marzocchi telescopic cartridge-type suspension with dual Sebac shocks in the rear. The front brakes used 2x300mm discs and 2-piston calipers while the rear brakes used a 200mm drum. The bike weighed 220 kg/485 lbs and had a fuel capacity of 23 litres/6.1 US gal. It consumed an average of 5.9 L/100 km and had a standing quarter-mile time of 14.0 sec/148 km/h/92 mph with a top speed of 190 km/h/118 mph. The bike has been reviewed on benellimotoclub and compared to the CBX and Z1300.
Technical specifications:
Make Model: Benelli 750 Sei
| Year | 1974-75 |
|---|---|
| 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 |
| Exhaust | 2 x 3-into-1-into-3 |
| Induction | 3 x 24mm Dell’Orto carburetors |
| Ignition | Battery ignition (later model electronic ignition) |
| Starting | Electric & kick start |
| Max Power | 52.9 kW / 71 hp @ 8500 rpm |
| 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 | 200 mm drum |
| Front Tyre | 3.25-18 |
| Rear Tyre | 4.10-18 |
| 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 |
