 |
| Production |
|
|
|
| Begin of the Production |
|
1951 |
|
| End of the Production |
|
1954 |
|
| Numbers Produced |
|
18420 |
|
| Price |
|
2.750,- DM |
|
|
 |
 |
|
| Engine |
|
|
|
| Internal Designation |
|
252/1 |
|
| Motor Type |
|
four-stroke two-cylinder flat-twin |
|
| Bore x Stroke |
|
68 x 68 mm |
|
| Displacement |
|
494 ccm |
|
| Max Power |
|
24 hp at 5800 rpm |
|
| Compression Ratio |
|
6.3 : 1 |
|
| Valves |
|
ohv |
|
| Carburetion System |
|
2 x carburettor type Bing 1/22/41 - 1/22/42 or 1/22/61 - 1/22/62 |
|
| Engine Lubricating System |
|
forced-feed lubrication |
|
| Oil Pump |
|
gear pump |
|
|
|
|
|
| Power Transmission |
|
|
|
| Clutch |
|
single-plate, dry |
|
| Number of Gears |
|
4 |
|
| Shifting |
|
foot shifting (+ auxiliary manual lever on the gear block) |
|
| Gearbox Ratios |
|
4.0 / 2.28 / 1.7 / 1.3 (till the end of 1951: 3.6 / 2.28 / 1.7 / 1.3) |
|
| Rear Wheel Ratio |
|
1 : 3.89 (with sidecar 1 : 4.75) |
|
| Bevel / Crownwheel |
|
9 / 35 teeth (with sidecar 7 / 32) |
|
|
|
|
|
| Electrical System |
|
|
|
| Ignition System |
|
magneto ignition |
|
| Generator |
|
Noris 6 V L 45/60 L |
|
| Spark Plugs |
|
Bosch W 240 T1 |
|
|
|
|
|
| Chassis |
|
|
|
| Designation |
|
251/3 (1951), 251/4 (1952/53), 251/4 (1954) |
|
| Frame |
|
double loop steel tubular frame |
|
| Front Wheel Suspension |
|
telescopic fork |
|
| Rear Wheel Suspension |
|
telescopic suspension |
|
| Wheel Rims |
|
deep-bed 3 x 19 |
|
| Tyres front |
|
3.5 x 19 |
|
| Tyres rear |
|
3.5 x 19 |
|
| Brakes front |
|
drum brake Ø 200 mm (1952: duplex, 1954: full hub) |
|
| Brakes rear |
|
drum brake Ø 200 mm (1954: full hub) |
|
|
|
|
|
|
| Dimensions/Weights |
|
|
|
| Length x Width x Height |
|
2130 x 790 x 985 mm |
|
| Wheel Base |
|
1400 mm |
|
| Fuel Tank Capacity |
|
17 l |
|
| Unladen Weight, Full Tank |
|
190 kg (with original sidecar 320 kg) |
|
| Idle/Riding Noise |
|
84/94 phon (from 7/7/1953: 81/85 phon) |
|
| Load Rating |
|
355 kg (with original sidecar 600 kg ) |
|
| Fuel Consumption |
|
approx. 4,5 l/100 km |
|
| Oil Consumption |
|
approx. 0,7 l/1000 km |
|
| Top Speed |
|
135 kph (with original sidecar 95 kph) |
|
|
|
|
