| MODEL | BMW R 100RT MONO 1987 - 1989 |
| Year | 1987 - 1989 |
| 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 | 8.45:1 |
| Cooling System | Air cooled |
| Max Power | 44 kW / 60 hp @ 6500 rpm |
| Max Torque | 74 Nm / 7.5 kgf-m / 54.6 lb-ft @ 3500 rpm |
| Ignition | Battery ignition |
| Induction | 2 x Bing 40 mm constant-depression carburettors (94/40/105 - 94/40/106) |
| Start System | Electric |
| TRANSMISSION SPECS | |
| Lubrication | Wet sump |
| Gear Box | 5 Speed |
| Clutch | Dry single plate, diaphragm spring |
| Final Drive | Shaft |
| CHASSIS SPECS | |
| Frame | Double-loop tubular steel cradle |
| Front Suspension | Telescopic fork, hydraulic damping |
| Rear Suspension | BMW Monolever single-sided swingarm |
| Front Brakes | 285 mm disc, 2-piston caliper |
| Rear Brakes | 200 mm drum |
| DIMENSION SPECS | |
| Overall Length | 2175 mm / 85.6 in |
| Overall Width | 960 mm / 37.8 in |
| Overall Height | — |
| Seat Height | — |
| Wheelbase | 1447 mm / 57.0 in |
| Ground Clearance | — |
| Dry Weight | 229 kg / 505 lbs |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | — |
| Rear Tyre | 120/90 - 18 |
| FUEL SYSTEM | |
| Fuel Capacity | 22 Litres / 5.8 US gal |
| Fuel Consumption | — |
| Top Speed | 185 km/h / 115 mph |
After the revived R 100RS sold better than expected, BMW restarted the RT in 1987 on the same basis: a 60 hp low-compression boxer, Monolever single-sided swingarm, 18-inch cast wheels and a rear drum brake, with the big touring fairing. Cycle World found the engine smooth with strong midrange, but the suspension soft and the seat hard.
