Polish Motorcycles

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Choinski Motorcycles

Engine: four-stroke V-twin, drives the rear wheel by means of a wide flat belt
Bore x stroke / displacement: 105x130mm / 2160cc [calculator gives 2251cc]
Power: unknown, max engine speed
Drivetrain: belt transmission, with a tensioner acting as a clutch
Ignition: magneto
Frame: tubular, double
Front and rear suspension: rigid
tyres: 710 x 90
Empty weight: 180 kg
Maximum speed: approx. 100 km/h

Source: Polish History Archive