The Sunbeam Model 90 (1925) motorcycle has a single cylinder, side valve engine with a capacity of 499cc. It has a compression ratio of 5:1 and is air-cooled. The exhaust is single and it starts with a kick. It has a maximum power of 2.6 kW/3.5 hp and uses a chain for final drive. The frame is a single downtube cradle and it has Druid forks for the front suspension and a rigid, spring-loaded saddle for the rear suspension. The front and rear brakes are both drums and the wheels are made of steel with laced wire spokes. The dry weight of the motorcycle is 108 kg/238 lbs and has a top speed of 97 km/h/60 mph.
Make Model: Sunbeam Model 5
Year: 1925
Engine: Single cylinder, side valve
Capacity: 499 cc / 30.5 cu in
Bore x Stroke: 77 x 105.585 x 88 mm
Compression Ratio: 5:1
Cooling System: Air cooled
Exhaust: Single
Starting: Kick
Max Power: 2.6 kW / 3.5 hp
Final Drive: 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
Dry Weight: 108 kg / 238 lbs
Top Speed: 97 km/h / 60 mph
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