| General information |
|---|
| Model: | Ariel 4G Square Four Mark I |
| Year: | 1952 |
| Category: | Allround |
| Rating: | Do you know this bike?
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| Engine and transmission |
|---|
| Displacement: | 995.0 ccm (60.71 cubic inches) |
| Engine type: | Square four cylinder |
| Engine details: | Double twin cylinder arranged as a square. |
| Power: | 35.0 HP (25.5 kW)) @ 5500 RPM |
| Top speed: | 144.8 km/h (90.0 mph) |
| Compression: | 6.0:1 |
| Bore x stroke: | 65.0 x 78.0 mm (2.6 x 3.1 inches) |
| Valves per cylinder: | 2 |
| Fuel system: | Carburettor. SU MC2 carburettor |
| Fuel control: | Overhead Valves (OHV) |
| Lubrication system: | Dry sump with dual oil pump. |
| Cooling system: | Air |
| Gearbox: | 4-speed |
Transmission type,
final drive: | Chain |
| Exhaust system: | Dual two-into-one |
| Chassis, suspension, brakes and wheels |
|---|
| Frame type: | Tubular single loop |
| Front suspension: | Oil damped telescopic fork |
| Rear suspension: | Plunger-link spring |
| Front tyre: | 3.25-19 |
| Rear tyre: | 4.00-18 |
| Front brakes: | Expanding brake (drum brake) |
| Diameter: | 203 mm (8.0 inches) |
| Rear brakes: | Expanding brake (drum brake) |
| Diameter: | 178 mm (7.0 inches) |
| Wheels: | Wire spoked. Dunlop tyres. |
| Seat: | Solo seat |
| Physical measures and capacities |
|---|
| Dry weight: | 197.0 kg (434.3 pounds) |
| Power/weight ratio: | 0.1777 HP/kg |
| Overall length: | 2083 mm (82.0 inches) |
| Wheelbase: | 1422 mm (56.0 inches) |
| Fuel capacity: | 16.00 litres (4.23 gallons) |
| Other specifications |
|---|
| Color options: | Red/chrome, Black/chrome |
| Starter: | Kick |
| Electrical: | 6 Volt battery. |
| Light: | 30 Watt headlamp. |
| Comments: | Also called ´Squariel´. Designed by Edward Turner. |
| Further information |
|---|
| Ask questions | Join the 52 Ariel 4G Square Four Mark I discussion group or the general Ariel discussion group. |
| Related bikes | List related bikes for comparison of specs. |
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