| MODEL | BMW R 80RT 1982 - 1983 |
| Year | 1982 - 1983 |
| 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 | 59 Nm / 6.0 kgf-m / 43 ft-lb @ 3500 rpm |
| Ignition | Battery ignition, Bosch 12 V / 280 W alternator |
| Induction | 2 x Bing constant-depression carburettors |
| Start System | Electric |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | 5-speed |
| Clutch | Dry single plate, diaphragm spring |
| Final Drive | Shaft |
| CHASSIS SPECS | |
| Frame | — |
| Front Suspension | Telescopic hydraulic fork, 200 mm / 7.9 in travel |
| Rear Suspension | Twin-shock long swingarm with adjustable struts, 125 mm / 4.9 in travel |
| Front Brakes | 2 x 260 mm discs, single-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 | 1465 mm / 57.7 in |
| Seat Height | 810 mm / 31.9 in |
| Wheelbase | 1465 mm / 57.7 in |
| Ground Clearance | 130 mm / 5.1 in |
| Dry Weight | — |
| Wet Weight | 235 kg / 518 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 | 4.9 L/100 km / 20.4 km/l / 48 mpg |
| Top Speed | 161 km/h / 100 mph |
The twin-shock R 80 RT was BMW's R 100 RT tourer with the 800 cc boxer in place of the litre engine, keeping the large wind-tunnel fairing with built-in storage boxes. The 1980s update brought Nikasil cylinder bores and a pulse-air emissions system, and testers praised its weather protection, light steering and smooth torque, if not its outright speed or stands.
