1931 BMW R2 Series 1
| Engine Engine type Bore x Stroke Displacement Valves Compression ratio Max Power Max Torque Carburation system Transmission Final drive Clutch Ignition type Starting system Lubrication Gear ratios Spark plugs | Air cooled, Four Stroke single cylinder vertical, OHV 63 x 64 mm (2.48 x 2.51 in) 198cc OHV 6.7:1 6hp @ 3,500 rpm - 1 x Sum carburettor 19 mm 3-speed Cardan Single plate dry clutch Battery ignition Kick starter Forced Feed Lubrication 2.83 / 1.55 / 1.08 Bosch W 175 or Bosch 200 G 24 |
| Dimensions Frame type Overall length Overall width Overall height Wheelbase Seat height Ground clearance Weight Fuel capacity Suspension (front) Suspension (rear) Tyre (front) Tyre (rear) Brake (front) Brake (rear) | Pressed steel duplex frame 1950 mm 850 mm 950 mm 1320 mm 770 mm 130 mm 130 kg 11 litres Cantilever spring, 9 laminae Rigid 26x3.5 on 19x3 26x3.5 on 19x3 Drum brake 180 mm / 7.08 in diameter Drum brake 180 mm / 7.08 in diameter |
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