| MODEL | BMW R 80 MONO 1984 - 1992 |
| Year | 1984 - 1992 |
| 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 @ 6500 rpm |
| Max Torque | 58 Nm / 42.8 lb-ft @ 4000 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 | Double loop tubular frame with bolt-on rear section |
| Front Suspension | Telescopic hydraulic forks |
| Rear Suspension | Monolever single-sided swingarm with central spring strut, 125 mm / 4.9 in travel |
| Front Brakes | Single 285 mm disc, 1 piston caliper |
| Rear Brakes | 200 mm drum |
| DIMENSION SPECS | |
| Overall Length | 2175 mm / 85.6 in |
| Overall Width | 800 mm / 31.5 in |
| Overall Height | 1106 mm / 43.5 in |
| Seat Height | 810 mm / 31.9 in |
| Wheelbase | 1447 mm / 57.0 in |
| Ground Clearance | 140 mm / 5.5 in |
| Dry Weight | 190 kg / 419 lbs |
| Wet Weight | 210 kg / 463 lbs |
| WHEEL SPECS | |
| Front Tyre | 90/90 - 18 |
| Rear Tyre | 120/90 - 18 |
| FUEL SYSTEM | |
| Fuel Capacity | 22 Litres / 5.8 US gal |
| Fuel Consumption | 5.9 L/100 km / 40 US mpg |
| Top Speed | 178 km/h / 111 mph |
The Monolever R 80 replaced the twin-shock R 80/7 as BMW's entry boxer, using a single-sided swingarm that also housed the drive shaft. The fork and 285 mm front brake came from the K 100, while the 50 hp 800 cc twin was carried over in milder form. It was built until 1992 and offered relaxed, low-maintenance touring.
