R3
Start of Production | 1936 |
Click to View Available Literature |
End of Production | 1936 | |
Number Produced: | 740 | |
Price: | 995 RM | |
Engine |
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Internal Designation | 203/1 | |
Motor Type | Four Stroke single cylinder vertical | |
Bore x Stroke | 68 x 84 mm (2.67 x 3.30 in) | |
Displacement | 305 cc | |
Maximum Power | 11hp at 4,200 rpm | |
Compression Ratio | 6.0 : 1 | |
Valves | OHV | |
Carburation System | 1 x register carburettor SUM type CK 3/500 | |
Engine Lubricating System | Forced Feed Lubrication | |
Oil Pump | Gear Pump | |
Power Transmission |
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Clutch | Single plate dry clutch | |
Number of Gears | 4 | |
Gear Shift | Manual | |
Gearbox Ratios | 3.6 / 2.18 / 1.35 / 1 | |
Rear Wheel Ratio | 1 : 5.11 (1 : 5.63 with sidecar) | |
Bevel / Crownwheel | 9 / 46 teeth (8 / 45 with sidecar) | |
Electrical System |
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Ignition System | Battery ignition | |
Generator | Bosch 6V/45/70 W | |
Spark Plugs | Bosch W 175/T1 | |
Chassis |
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Designation | 203/1 | |
Frame | Pressed steel twin loop frame | |
Front Suspension | Cantilever spring, 9 laminae with friction shock absorber | |
Rear Suspension | Rigid | |
Wheel Rims | 2.5 x 19 | |
Front Tyre | 26 x 3.5 balloon | |
Rear Tyre | 26 x 3.5 balloon | |
Front Brakes | Drum brake | |
Rear Brake | Drum brake | |
Dimensions / Weights |
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Length x Width x Height | 1980 x 850 x 950 mm (77.95 x 33.46 x 37.40 in) | |
Wheel Base | 1320 mm / 51.96 in | |
Fuel Tank Capacity | 12 litres / 2.63 gal / 3.17 gal US | |
Unladen Weight with full tank | 149 kg / 328 lb | |
Permitted Weight Limit | 200 kg / 440 lb | |
Fuel Consumption | 3 litres per 100 kilometres approx / 94 mpg / 78 mpg US | |
Oil Consumption | 1 - 2 litres per 1,000 kilometres | |
Top Speed | 100 kph / 62 mph | |
Information kindly supplied by P.Hawksley