| MODEL | BMW R 100 1980 - 1981 |
| Year | 1980 - 1981 |
| Engine Type | Four stroke, two cylinder horizontally opposed Boxer, 2 valves per cylinder |
| Displacement / Capacity | 980 cc / 59.8 cu in |
| Bore X Stroke | 94 x 70.6 mm |
| Compression Ratio | 8.2:1 |
| Cooling System | Air cooled |
| Max Power | 48.8 kW / 66.6 hp @ 7000 rpm |
| Max Torque | 72 Nm / 7.34 kgf-m / 53.1 lb-ft @ 5500 rpm |
| Ignition | Bosch contactless electronic ignition |
| Induction | 2 x Bing V94/40 constant-depression carburettors |
| Start System | Electric |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | 5 Speed |
| Clutch | Single dry plate |
| Final Drive | Shaft |
| CHASSIS SPECS | |
| Frame | Double cradle tubular steel frame |
| Front Suspension | Telescopic fork with hydraulic damping, 200 mm / 7.8 in travel |
| Rear Suspension | Long swingarm with adjustable shock absorbers, 125 mm / 4.9 in travel |
| Front Brakes | Single 260 mm disc |
| Rear Brakes | 200 mm drum |
| DIMENSION SPECS | |
| Overall Length | 2210 mm / 87.0 in |
| Overall Width | 746 mm / 29.4 in |
| Overall Height | 1210 mm / 47.6 in |
| Seat Height | 820 mm / 32.3 in |
| Wheelbase | 1465 mm / 57.7 in |
| Ground Clearance | 165 mm / 6.5 in |
| Dry Weight | 198 kg / 436.5 lbs |
| Wet Weight | 218 kg / 480 lbs |
| WHEEL SPECS | |
| Front Tyre | 3.25 H19 |
| Rear Tyre | 4.00 H18 |
| FUEL SYSTEM | |
| Fuel Capacity | 24 Litres / 6.3 US gal |
| Fuel Consumption | — |
| Top Speed | 195 km/h / 121 mph |
The R 100 replaced the R 100 T as BMW's unfaired 1000 cc tourer, and in the 1981 revision gained a couple of horsepower, wider cast wheel rims and an improved front brake. It was the simplest and lightest of the big boxers, a dependable naked bike for touring and commuting.
