- Combustion principle: four-stroke
- Configuration: front, longitudinal; vertical
- Number of cylinders / arrangement: 4 / in-line (in pairs)
- Bore x Stroke: 100 x 130 mm
- Total displacement: 4084 cc
- Rated output: 28 hp at 1200 rpm
- Number of valves / arrangement: 1 intake, 1 exhaust / lateral, vertical (T-disposition)
- Valve operation: 2 lateral camshafts
- Camshaft drive: via spur gears
- Fuel system: piston-type carburettor
- Fuel tank: position / capacity: in front of the rear axle
- Frame design: U-section pressed-steel frame
- Front-wheel suspension: rigid axle
- Rear-wheel suspension: rigid axle
- Front springs: three-quarter elliptical springs
- Rear springs: semi-elliptical springs
- Steering: worm-and-nut steering, right-hand
- Brake system (foot brake): mechanical (water-cooled), acting on drive shaft
- Parking brake (hand brake): mechanical, acting on rear wheels
- Wheels: wooden-spoke wheels with steel rims (not detachable)
- Tires: front: 910 x 90; rear: 1020 x 120
- Driven wheels: rear wheels
- Drivetrain: chains
- Gearing: 4-speed manual transmission
- Shifting: shift lever, right exterior (gate shift)
- Clutch: coil spring clutch
- Transmission type: gearwheel thrust transmission
- Maximum speed: 80 km/h
- Wheelbase: 2100 or 2400 mm
- Front / rear track: 1414 / 1414 mm