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Ariel 4G Square Four Mark I 19491949 Ariel 4G Square Four Mark I specifications, pictures, reviews and rating |
 1949 Ariel 4G Square Four Mark I. Picture credits - Ariel. Submit more pictures. |
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| General information | |
|---|---|
| Model name | Ariel 4G Square Four Mark I |
| Model year | 1949 |
| Category | Allround |
| Rating |
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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 output | 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 | Chain (final drive) |
| Exhaust system | Dual two-into-one |
| Chassis, suspension, brakes and wheels | |
| Frame type | Tubular single loop |
| Front suspension | Oil damped telescopic |
| Rear suspension | Plunger-link spring |
| Front tire | 3.25-19 |
| Rear tire | 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 |
| 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 | 23.00 litres (6.08 US gallons) |
| Other specifications | |
| Color options | Red/silver |
| Starter | Kick |
| Comments | Also called ´Squariel´. Designed by Edward Turner. Cast-iron cylinder head and barrel replaced by aluminium alloy head and barrel. Weight reduced by 14 kg. |
| Update specs | Report missing specs or required updates. |
| Further information | |
| Maintenance | Find parts, fluids. filters, maintenance tools and service manuals at Amazon.com. |
| Ask questions | Join the 49 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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