| MODEL | BMW R 80/7 1977 - 1979 |
| Year | 1977 - 1979 |
| Engine Type | Four stroke, two cylinder horizontally opposed Boxer, pushrod operated 2 valves per cylinder |
| Displacement / Capacity | 797.5 cc / 48.7 cu in |
| Bore X Stroke | 84.8 x 70.6 mm |
| Compression Ratio | 8.2:1 |
| Cooling System | Air cooled |
| Max Power | 37 kW / 50 hp @ 7250 rpm |
| Max Torque | 56.6 Nm / 41.8 lb-ft @ 5500 rpm |
| Ignition | Battery ignition |
| Induction | 2 x Bing constant depression carburetors |
| Start System | Electric |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | 5 Speed |
| Clutch | Dry single plate, with diaphragm spring |
| Final Drive | Shaft |
| CHASSIS SPECS | |
| Frame | — |
| Front Suspension | Telescopic hydraulic forks, 200 mm / 7.9 in travel |
| Rear Suspension | Long swinging arm with adjustable struts, 125 mm / 4.9 in travel |
| Front Brakes | 2 x 260 mm discs, 1 piston calipers |
| Rear Brakes | 200 mm drum |
| DIMENSION SPECS | |
| Overall Length | 2210 mm / 87.0 in |
| Overall Width | 746 mm / 29.4 in |
| Overall Height | 1080 mm / 42.5 in |
| Seat Height | 810 mm / 31.9 in |
| Wheelbase | 1465 mm / 57.7 in |
| Ground Clearance | 165 mm / 6.5 in |
| Dry Weight | — |
| Wet Weight | 215 kg / 474 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 | 170 km/h / 104 mph |
The R 80/7 replaced the R 75/7 in 1977, taking the boxer to 797.5 cc with a larger bore and becoming BMW's mid-range touring twin. This entry covers the detuned low-compression version, which made 50 hp and was popular where insurance favoured lower outputs. Early bikes changed quickly: a second front disc became standard in 1978 and cast wheels and a sportier seat followed in 1979.
