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Ariel 4G Square Four Mark II 19591959 Ariel 4G Square Four Mark II specifications, pictures, reviews and rating |
1959 Ariel 4G Square Four Mark II. Picture credits - Sohclassicas.blogspot.no. Submit more pictures.
| General information | |
|---|---|
| Model | Ariel 4G Square Four Mark II |
| Year of manufacture | 1959 |
| Type | Allround |
| Rating | 3.2 Check out the detailed rating of reliability, maintenance costs, value for money, etc. Compare with any other motorcycle. |
| Engine and transmission | |
| Engine size | 995.0 ccm (60.71 cubic inches) |
| Type of engine | Square four cylinder |
| Engine details | Double twin cylinder arranged as a square. |
| Output | 45.0 HP (32.8 kW)) @ 5500 RPM |
| Top speed | 160.0 km/h (99.4 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 with air cleaner |
| Fuel control | Overhead Valves (OHV) |
| Lubrication system | Dry sump with dual oil pump. |
| Cooling system | Air |
| Gearbox | 4-speed |
| Transmission type | Chain (final drive) |
| Clutch | Dry, 3-plate |
| Fuel consumption | 3.04 litres/100 km (32.9 km/l or 77.38 mpg) |
| Greenhouse gases | 70.5 CO2 g/km. (CO2 - Carbon dioxide emission) |
| Chassis, suspension, brakes and wheels | |
| Frame type | Full cradle |
| Front suspension | Oil damped telescopic fork |
| Rear suspension | Plunger-link spring |
| Front tire | 3.25-19 |
| Rear tire | 4.00-18 |
| Front brakes | Expanding brake (drum brake) |
| Diameter | 178 mm (7.0 inches) |
| Rear brakes | Expanding brake (drum brake) |
| Diameter | 203 mm (8.0 inches) |
| Wheels | Wire spoked. Dunlop tyres. |
| Physical measures and capacities | |
| Weight incl. oil, gas, etc | 197.3 kg (435.0 pounds) |
| Overall length | 2184 mm (86.0 inches) |
| Overall width | 686 mm (27.0 inches) |
| Ground clearance | 140 mm (5.5 inches) |
| Wheelbase | 1422 mm (56.0 inches) |
| Fuel capacity | 18.93 litres (5.00 US gallons) |
| Oil capacity | 3.40 litres (3.59 US quarts) |
| Other specifications | |
| Color options | Claret, Red/black, Black |
| Starter | Kick |
| Electrical | 6 Volt |
| Light | 7.5 inch, 30 Watt headlamp. |
| Comments | Also called ´Squariel´. Designed by Edward Turner. Mark II has separate barrels, a re-designed cylinder head with four separate exhaust pipes from two cast-aluminium manifolds and a rocker-box combined with the inlet manifold. Sidecar option. |
| 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 59 Ariel 4G Square Four Mark II discussion group or the general Ariel discussion group. |
| Related bikes | List related bikes for comparison of specs. |
| Compare with another motorcycle | |
Pictures of classic bikes wanted
Bikez is now publishing specs for pre 1970 motorcycles. We invite our users to upload pictures of classic motorcycles. You will get your name and bike on Bikez.com. Search for the bikes you have pictures of and use the link to upload pictures. See our contribution page. We also have a discussion group about restoration and valuation of each bike. Vintage and veteran bikes can be sold and bought through our free motorcycle classifieds.| Rating sample for this Ariel bike | |
Value for money for the 1959 Ariel 4G Square Four Mark II:  (68.3 out of 100)Click here for complete rating. |
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