Benelli 304 (1984-88)

The Benelli 304 motorcycle was produced from 1984 to 1988 and featured a four-stroke transverse four-cylinder engine with a capacity of 231.4cc. The engine had two valves per cylinder, a compression ratio of 10.5:1, and was air-cooled with four Dell’Orto PHBG 18 B carburetors. The ignition was coil, distributor and the starting was electric, with an optional kick start. The max power of the bike was 27.8 hp at 10500 rpm and max torque was 18.8 Nm at 9000 rpm. The transmission had five speeds with a chain final drive. The frame was an open tubular frame with a load-bearing engine and the suspension had hydraulic forks in the front with a 30 mm radius and a swinging arm with hydraulic shocks in the rear. The front brake was a single 260 mm disc with a rear brake of a 158 mm drum. The bike had a top speed of 150 km/h or 93.4 mph with a dry weight of 134 kg or 295 lbs. The fuel capacity was 11 liters or 2.9 US gallons. The overall dimensions included a length of 1940 mm or 76.4 in, a width of 710 mm or 28.0 in, and a height of 950 mm or 37.4 in with a wheelbase of 1270 mm or 50.0 in.


Technical specifications:

Make Model: Benelli 304

Year: 1984 – 88


Engine: Four stroke, transverse four cylinder, OHV, 2 valves per cylinder
Capacity: 231.4 cc / 14.1 cu in
Bore x Stroke: 44 x 38 mm
Compression Ratio: 10.5:1
Cooling System: Air cooled
Oil Capacity: 2.5 L / 2.6 US qts
Exhaust: 4-into-2
Induction: 4 x Dell’Orto PHBG 18 B carburetors
Ignition: Coil, distributor
Starting: Electric (kick start optional)
Max Power: 20.1 kW / 27.8 hp @ 10500 rpm
Max Torque: 18.8 Nm / 1.92 kgf-m / 13.86 lbs-ft @ 9000 rpm
Transmission: 5 Speed
Final Drive: Chain
Frame: Open tubular frame, load bearing engine

Front Suspension: Hydraulic forks, 30 mm
Rear Suspension: Swinging arm with hydraulic shocks
Front Brakes: Single 260 mm disc
Rear Brakes: 158 mm Drum
Front Tyre: 3.75 -18
Rear Tyre: 3.00 -18
Dimensions: Length: 1940 mm / 76.4 in Width: 710 mm / 28.0 in Height: 950 mm / 37.4 in
Wheelbase: 1270 mm / 50.0 in
Dry Weight: 134 kg / 295 lbs
Fuel Capacity: 11 Litres / 2.9 US gal
Top Speed: 150 km/h / 934 mph

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