| Attribute | Value |
| General |
| Production from | 1937 year |
| Make | BMW |
| Model | BMW R20 |
| Category | Allround |
| Engine and transmission |
| Engine type | Single cylinder, four-stroke |
| Valves per cylinder | Add |
| Fuel system | Carburettor |
| Engine details | Add |
| Displacement | 192 cm³ |
| Power | 5.9 kw |
| Max RPM | Add |
| Fuel consumption | Add |
| Cooling system | Air |
| Transmission type,final drive | Shaft drive (cardan) |
| Torque | Add |
| Bore | 63 mm |
| Stroke | 64 mm |
| Gearbox | 3-speed |
| Greenhouse gases | Add |
| Fuel control | Overhead Valves (OHV) |
| Emission details | Add |
| Driveline | Add |
| Ignition | Battery |
| Clutch | Dry-multiplate-cable operated |
| Lubrication system | Wet sump |
| Compression | 6.1:1 |
| Exhaust system | Add |
| Chassis |
| Front suspension | Telescopic fork |
| Rear suspension | Rigid |
| Front brakes | Expanding brake (drum brake) |
| Rear brakes | Expanding brake (drum brake) |
| Diameter | 160 mm |
| Frame type | Steel-single cradlel |
| Front tyre | 2.99-19 |
| Rear tyre | 2.99-19 |
| Seat | Solo seat with springs |
| Wheels | Add |
| Front wheel travel | Add |
| Rear wheel travel | Add |
| Trail | Add |
| Rake (fork angle) | Add |
| Other |
| Battery capacity | Add |
| Starter | Kick |
| Color options | Add |
| Carrying capacity | 200kg |
| Light | Add |
| Instruments | Add |
| Electrical Voltage | Add |
| Dimensions |
| Wheelbase | 1,330 mm |
| Kerb weight | 130 kg |
| Dry weight | Add |
| Power/weight ratio | Add |
| Overall height | 900 mm |
| Overall length | 2,000 mm |
| Overall width | 800 mm |
| Seat height | Add |
| Alternate seat height | Add |
| Ground clearance | Add |
| Front percentage of weight | Add |
| Rear percentage of weight | Add |
| Performance |
| Top speed | 95 km/h |
| Acceleration 0-100 km/h | Add |
| Length | Add |
| Reserve fuel capacity | Add |
| Fuel capacity | 12 l |
| Oil capacity | Add |
| Width | Add |
| Height | Add |