| MODEL | BMW R 1100RS 1997 - 1998 |
| Year | 1997 - 1998 |
| Engine Type | Four stroke, two cylinder horizontally opposed Boxer, 4 valves per cylinder |
| Displacement / Capacity | 1085 cc / 66.2 cu in |
| Bore X Stroke | 99 x 70.5 mm |
| Compression Ratio | 10.7:1 |
| Cooling System | Air/Oil cooled |
| Max Power | 67.1 kW / 90 hp @ 7250 rpm |
| Max Torque | 95 Nm / 9.7 kgf-m / 69 lb-ft @ 5500 rpm |
| Ignition | Electronic ignition MA 2.2 Bosch Motronic |
| Induction | Fuel injection |
| Start System | Electric |
| TRANSMISSION SPECS | |
| Lubrication | Wet sump |
| Gear Box | 5 Speed |
| Clutch | Dry, single plate |
| Final Drive | Shaft |
| CHASSIS SPECS | |
| Frame | Steel backbone frame |
| Front Suspension | Telelever with central spring strut & linear-rate coil spring, twin-tube gas-filled shock, 120 mm / 4.7 in travel |
| Rear Suspension | Paralever swingarm & shaft drive, single-tube gas-filled shock, variable rebound setting, 125 mm / 4.9 in travel |
| Front Brakes | 2 x 305 mm discs, 4 piston calipers |
| Rear Brakes | Single 276 mm disc, 2 piston caliper |
| DIMENSION SPECS | |
| Overall Length | 2175 mm / 85.6 in |
| Overall Width | 920 mm / 36.2 in |
| Overall Height | 1286 mm / 50.6 in |
| Seat Height | 780 mm / 30.7 in |
| Wheelbase | 1485 mm / 58.5 in |
| Ground Clearance | 153 mm / 6.2 in |
| Dry Weight | 239 kg / 526 lbs |
| Wet Weight | 268 kg / 590.8 lbs |
| WHEEL SPECS | |
| Front Tyre | 120/70-17 |
| Rear Tyre | 160/60-18 |
| FUEL SYSTEM | |
| Fuel Capacity | 22 Litres / 5.8 US gal |
| Fuel Consumption | 6.0 L/100 km / 16.6 km/l / 39.0 US mpg |
| Top Speed | 218.7 km/h / 135.9 mph |
Photo: Sharshar, CC BY-SA 3.0, via Wikimedia Commons
Photo: Geoff from UK, CC BY-SA 2.0, via Wikimedia Commons
The R 1100RS was the first of BMW's four-valve 'oilhead' boxers, and by 1997 it was a mature sport-tourer with fuel injection, Telelever front end and Paralever shaft drive. The half fairing, adjustable bars, seat and screen made it a capable long-distance machine rather than an outright sports bike. These late-1990s bikes carried on largely unchanged, with ABS widely fitted.
