Comparison of Adler M 250 S 1952 and Velocette KTT Mk VIII 1940 [S]ave
| Attribute |  Velocette KTT Mk VIII 1940 × |  Adler M 250 S 1952 × |
|---|---|---|
| General | ||
| Production from (year) | 1940 | 1952 |
| Make | Velocette | Adler |
| Model | Velocette KTT Mk VIII | Adler M 250 S |
| Category | Sport | Allround |
| Engine and transmission | ||
| Engine type | Single cylinder, four-stroke | Twin, two-stroke |
| Fuel system | Carburettor. Amal | Carburettor |
| Displacement (cm³) | 348.4 | 247 |
| Power (kw) | 25.5 | 11.7 |
| Cooling system | Air | Air |
| Transmission type,final drive | Chain | Chain |
| Bore (mm) | 74 | 54 |
| Stroke (mm) | 81 | 54 |
| Gearbox | - | 4-speed |
| Fuel control | Overhead Valves (OHV) | - |
| Ignition | Bobine | - |
| Clutch | Wet multiplate | Wet multiplate |
| Lubrication system | Dry sump | - |
| Compression | 7.8:1 | 5.8:1 |
| Exhaust system | Single -Chrome | - |
| Chassis | ||
| Rear suspension | - | Two schock |
| Front brakes | Expanding brake (drum brake) | Expanding brake (drum brake) |
| Rear brakes | Expanding brake (drum brake) | Expanding brake (drum brake) |
| Diameter (mm) | 178 | 180 |
| Frame type | Single cradle | Semi double cradle |
| Front tyre | - | 3.25-16 |
| Rear tyre | - | 3.25-16 |
| Seat | Dual | Single |
| Wheels | Spoked | - |
| Other | ||
| Starter | Kick | Kick |
| Color options |
| - |
| Dimensions | ||
| Dry weight (kg) | 125 | 135 |
| Power/weight ratio | 0.204 | 0.0867 |
| Performance | ||
| Top speed (km/h) | 185 | 116 |
| Fuel capacity (l) | 11.4 | 12 |
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