Sunbeam Model 1 and Model 2 (1923-30)

The Sunbeam Model 1 and Model 2 were motorcycles produced between 1923 and 1930. These bikes had a single cylinder, side valve engine with a capacity of 347 cc and a bore and stroke of 70 x 90 mm. They were air cooled with a single exhaust and kickstarting. They had a power output of 2.05 kW (2.75 hp) and a 3-speed transmission. The final drive was an enclosed chain. The frame was a single downtube cradle with front suspension provided by Druid forks and rear suspension being rigid with a spring loaded saddle. Both the front and rear brakes were drum brakes. The wheels of the Sunbeam Model 1 and Model 2 were made of steel with laced wire spokes.

Technical specifications:

Make Model: Sunbeam Model 1, Model 2

Year: 1923 – 30
Engine: Single cylinder, side valve
Capacity: 347 cc / 21.2 cu
Bore x Stroke: 70 x 90 mm
Cooling System: Air cooled
Exhaust: Single
Starting: Kick
Power: 2.05 kW / 2.75 hp
Transmission: 3-Speed
Final Drive: Enclosed chain
Frame: Single downtube cradle
Front Suspension: Druid forks
Rear Suspension: Rigid, spring loaded saddle
Front Brakes: Drum
Rear Brakes: Drum
Wheels: Steel, laced wire spokes