Ariel Square Four 4G 1000, Mark I, Mark II (1936-48) vs Ariel Arrow Super Sport 250 (1961-62) vs Ariel 4F Square Four 600 (1932-36)
Comparison technical specifications
Add bike |
Remove bike |
Remove bike |
Remove bike |
| Make: | Ariel | Ariel | Ariel |
| Model: | Square Four 4G 1000, Mark I, Mark II | Arrow Super Sport 250 | 4F Square Four 600 |
| Years: | 1936-48 | 1961-62 | 1932-36 |
| Engine: | Four stroke, vertical square four, OHV, 8 valves | Two stroke, parallel twin | Four stroke, parallel twin, OHC |
| Capacity: | 997 cc / 60.8 cu in | 247 cc / 15.1 cu in | 601 cc / 36.7 cu in |
| Bore x Stroke: | 65 x 78 mm | 54 x 54 mm | 56 x 61 mm |
| Cooling System: | Air cooled | Air cooled | Air cooled |
| Compression Ratio: | 6.0:1 | 10:1 | 6.9:1 |
| Exhaust: | Mk I, Mk II: 2 x 2-into-1 | 2-into-2 | 2 x 1-into-1 |
| Induction: | SU carburetor | 1-1/16 in Amal 376 carburettor | Carburetor |
| Starting: | Kick start | Kick | Kick start |
| Max Power: | F4 G, Mk I: 26 kW / 35 hp @ 5500 rpm Mk II: 34 kW / 45 hp @ 5500 rpm | 14.9 kW / 20 hp 2 6500 rpm | 17 kW / 23 hp @ 5600 rpm (1939 model) |
| Transmission: | 4-Speed | 4-Speed | 4-Speed, Burman |
| Final Drive: | Chain | Chain | Chain |
| Front Suspension: | Telescopic fork | Trailing link fork | Ariel centre spring girders |
| Rear Suspension: | Plunger-link spring | Swing arm, twin shock absorbers/dampers | Rigid, spring loaded saddle |
| Front Brakes: | Drum | Drum, 6 in, leading shoe | Drum, 7 in |
| Rear Brakes: | Drum | Drum, 6 in, leading shoe | Drum, 7 in |
| Wheels: | Steel, laced wire spokes | Steel, laced wire spokes | Steel, laced wire spokes |
| Wheelbase: | 1422 mm / 56 in | 1300 mm / 51 in | 1384mm / 54.5 in |
| Dry Weight: | 4G: 211 kg / 465 lbs Mk I: 197 kg / 435 lbs Mk II: 193 lg: 425 lbs | 132 kg / 290 lbs | 168 kg / 370 lbs |