| MODEL | BENELLI 304 1984 - 1988 |
| Year | 1984 - 1988 |
| Engine Type | Four stroke, transverse four cylinder, OHV, 2 valves per cylinder |
| Displacement / Capacity | 231.4 cc / 14.1 cu in |
| Bore X Stroke | 44 x 38 mm |
| Compression Ratio | 10.5:1 |
| Cooling System | Air cooled |
| 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 |
| Ignition | Coil, distributor |
| Induction | 4 x Dell'Orto PHBG 18 B carburetors |
| Start System | Electric (kick start optional) |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | 5 Speed |
| Clutch | — |
| Final Drive | Chain |
| CHASSIS SPECS | |
| 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 |
| DIMENSION SPECS | |
| Overall Length | 1940 mm / 76.4 in |
| Overall Width | 710 mm / 28.0 in |
| Overall Height | 950 mm / 37.4 in |
| Seat Height | — |
| Wheelbase | 1270 mm / 50.0 in |
| Ground Clearance | — |
| Dry Weight | 134 kg / 295 lbs |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 3.75-18 |
| Rear Tyre | 3.00-18 |
| FUEL SYSTEM | |
| Fuel Capacity | 11 Litres / 2.9 US gal |
| Fuel Consumption | — |
| Top Speed | 150 km/h / 93 mph |
The 304 is the last evolution of Benelli's small air-cooled four, a 231 cc touring-oriented machine in the same family as the 354 Sport and 350 RS. It built on the 254 Quattro with a bigger fuel tank and a slightly heavier build, and stayed in production through the second half of the 1980s.
