JUNAK B20 (1960-1965) Specs, Performance & Photos
Maintained by:
Segment: Trike
Production years: 1960, 1961, 1962, 1963, 1964, 1965
2 Photos
Junak B20, a three-wheel transport version of Polish Junak motorcycle, based on serial M10 model. From 1960 to 1965 about 2500 units were built, 153 of them were exported. Very few B20 are preserved.
The B20 proved to be superior to B21, with greater top speed (75 km/h when compared with 60 km/h) and possibility to carry 300 kg of load, when the own weight of the three-wheel vehicle was 320 kg. Fuel usage was about 5,7 l/100 km.
JUNAK B20 1960-1965
JUNAK B20 350
| engine specs | Type: | Four stroke, single cylinder, OHV | Displacement: | 349 cm3 | Bore X Stroke: | 3.0x3.1 in OR 76 mm | Compression Ratio: | 7.0:1 | Horsepower: | 19/6000 KW(hp)/RPM | Torque: | 20/3800 lb-ft/RPM OR 27/3800 Nm/RPM | Fuel System: | Carburetor |
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| transmission specs | Gearbox: | 4-Speed | Clutch: | Wet Multi-plate | Primary Drive: | - | Final Drive: | Chain |
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| chassis specs | Frame: | Double, cradle-type, welded throughout of tubing, provided with holders for side car mounting | Front Suspension: | Fork with coil springs telescopic shock absorbers | Rear Suspension: | Independent rear wheel suspension on single wishbone , cooperating with 7- leaf spring positioned transversely | Front Brake: | Full hub width, of expander shoe type, hand operated | Rear Brake: | Full hub width, of expander shoe type, foot operated |
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| dimension specs | Overall Length: | 120.3 in OR 3056 mm | Overall Width: | 55.9 in OR 1420 mm | Seat Height: | 29.7 in OR 754 mm | Wheelbase: | 79.1 in OR 2009 mm | Ground Clearance: | 6.7 in OR 170 mm | Weight: | 705 lbs OR 320 kg | Fuel Capacity: | 4.5 gallons OR 17.0 L |
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| tyres specs | Front: | - | Rear: | - |
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| power system specs | Power pack: | - | Nominal Capacity: | - | Maximum Capacity: | - | Charger type: | - | Charging time (normal): | - | Charging time (quick): | - | Range: | - |
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