1938 BMW R 66 technical specifications

Technical specifications

Model: R 66
Years: 1938-41
Engine: Four stroke, single cylinder vertical, SV
Capacity: 595 cc / 36.3 cu in
Bore x Stroke: 69.8 x 78 mm
Compression Ratio: 6.8:1
Cooling System: Air cooled
Induction: 1 x Amal 6/420 S carburetor
Ignition: Battery ignition
Starting: Kick
Clutch: Single plate, dry
Max Power: 22.4 kW / 30 hp @ 5300 rpm
Transmission: 4 Speed
Final Drive: Shaft
Gear Ratio: 1st 3.6 / 2nd 2.28 / 3rd 1. 7 / 4th 1.3
Frame: Twin loop steel tubular frame
Front Suspension: Telescopic fork
Rear Suspension: Telescopic suspension
Front Brakes: ∅200mm Drum
Rear Brakes: ∅200mm Drum
Front Tyre: 3.50 -19
Rear Tyre: 3.50 -19
Wet Weight: 187 kg / 411 lbs
Fuel Capacity: 14 liters / 3.6 US gal

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