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Engine |
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Internal Designation |
252/2 |
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Motor Type |
Four-stroke two cylinder flat twin |
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Bore x Stroke |
68 x 68 mm (2.67 x 2.67 in) |
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Displacement |
494 cc |
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Max Power |
26 hp at 5,800 rpm |
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Compression Ratio |
6.8 : 1 |
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Valves |
OHV |
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Carburation System |
2 x carburettor, Bing 1/24/45 - 1/24/46 |
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Engine Lubricating System |
Forced feed lubrication |
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Oil Pump |
Gear pump |
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Power Transmission |
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Clutch |
Single plate saucer spring, dry |
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Number of Gears |
4 |
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Shifting |
Foot shifting |
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Gearbox Ratios |
5.33 / 3.02 / 2.04 / 1.54 |
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Rear Wheel Ratio |
1 : 3.18 (1 : 4.25 or 1 : 4.33 with sidecar) |
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Bevel/Crownwheel |
11 / 35 teeth (8 / 34 or 6 / 26 with sidecar) |
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Electrical System |
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Ignition System |
Magneto ignition |
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Generator |
Noris L 60/6/1500 L |
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Spark Plugs |
Bosch W 240 T1 |
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Chassis |
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Designation |
R245/1 |
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Frame |
Double loop steel tubular frame |
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Front wheel suspension |
Long swing arm with suspension units and oil pressure shock absorbers |
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Rear wheel suspension |
Long swing arm with suspension units and oil pressure shock absorbers |
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Wheel rims |
Deep bed 3 x 18 |
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Tyres, Front |
3.5 x 18 |
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Tyres, Rear |
3.50 S (4 x 18 S with sidecar) |
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Brakes, Front |
Drum brake 200 mm / 7.87 in diameter duplex full hub |
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Brakes, Rear |
Drum brake 200 mm / 7.87 in diameter simplex full hub |
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Dimensions/Weights |
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Length x Width x Height |
2125 x 660 x 980 mm (83.66 x 25.9838.58 in) |
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Wheel Base |
980 mm / 38.58 in |
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Fuel Tank Capacity |
17 litres / 3.73 gal / 4.49 gal US |
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Unladen Weight with Full Tank |
195 Kg / 429 lb (320 Kg / 704 lb with original sidecar) |
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Idle/Riding Noise |
81/82 DIN phon (from Dec 1955: 82/76 phon) |
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Load Rating |
360 Kg / 792 lb (with original sidecar, 600 Kg / 1321 lb) |
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Fuel Consumption |
Approx. 4.1 litres per 100Km / 68 mpg / 57 mpg US |
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Oil Consumption |
Approx. 0.5 - 1 litre per 1,000 Km |
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Top Speed |
140 Kph / 87 mph (with original sidecar, 100 Kph / 62 mpg US) |
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