Sunbeam Model B1 scooter (1957-64)

Make Model: Sunbeam B1


Year: 1957 – 64
Engine: Parallel twin cylinder, 4 stroke
Capacity: 250 cc / 15.3 cu in
Bore x Stroke: 56 x 50.6 mm
Cooling System: Forced air cooled
Compression Ratio: 6.5:1
Battery: 12V
Starting: Electric
Max Power: 7.5 kW / 10 hp @ 5500 rpm
Transmission: Four speed
Final Drive: Enclosed chain in oil bath
Frame: Tubular frame
Ground Clearance: 127 mm / 5.0″
Front Brakes: Drum, 127 mm diameter
Rear Brakes: Drum, 127 mm diameter
Tyres, Front and Rear: 3.50 x 10″
Dri weight: 110 kg / 243 lbs
Fuel Consumption: 2.4 L/1000 km/ 41.7 km/l / 118 Imp mpg / 98 US mpg
Top Speed: 97 km/h / 60 mph


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