Comparison of Ariel 4F Square Four 600 1933 and KTM 640 LC4-E [S]ave
| Attribute |  KTM 640 LC4-E × |  Ariel 4F Square Four 600 1933 × |
|---|---|---|
| General | ||
| Production from (year) | 2000 | 1933 |
| Make | KTM | Ariel |
| Model | KTM 640 LC4-E | Ariel 4F Square Four 600 |
| Category | Enduro / offroad | Allround |
| Engine and transmission | ||
| Engine type | Single cylinder, four-stroke | Square four cylinder |
| Valves per cylinder | - | 2 |
| Fuel system | - | Carburettor. Amal |
| Engine details | - | Double twin - square 4 cylinder arrangement |
| Displacement (cm³) | 625 | 601 |
| Power (kw) | 35.8 | 16.8 |
| Cooling system | Liquid | Air |
| Transmission type,final drive | Chain | Chain |
| Bore (mm) | - | 56 |
| Stroke (mm) | - | 61 |
| Gearbox | - | 4-speed |
| Fuel control | - | Overhead Cams (OHC) |
| Driveline | - | Burman gearbox |
| Compression | - | 6.9:1 |
| Exhaust system | - | 2 x 1-into-1 pipes |
| Chassis | ||
| Front suspension | - | Spring girders |
| Rear suspension | - | Rigid |
| Front brakes | Single disc | Expanding brake (drum brake) |
| Rear brakes | Single disc | Expanding brake (drum brake) |
| Frame type | - | Semi-cradle |
| Front tyre | - | 3.25-19 |
| Rear tyre | - | 3.25-19 |
| Wheels | - | Wire spoked |
| Other | ||
| Starter | - | Kick |
| Color options |
|
|
| Dimensions | ||
| Wheelbase (mm) | 1,510 | 1,385 |
| Dry weight (kg) | 136 | 168 |
| Power/weight ratio | 0.2632 | 0.1 |
| Performance | ||
| Top speed (km/h) | 165 | 140 |
| Fuel capacity (l) | 12 | 13.25 |
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