| MODEL | BMW R 1100S 1999 - 2000 |
| Year | 1999 - 2000 |
| 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 | 11.3:1 |
| Cooling System | Air/Oil cooled |
| Max Power | 71.4 kW / 98 hp @ 7500 rpm |
| Max Torque | 97 Nm / 9.9 kgf-m / 71.5 lb-ft @ 5750 rpm |
| Ignition | Bosch electronic |
| Induction | Bosch fuel injection |
| Start System | Electric |
| TRANSMISSION SPECS | |
| Lubrication | Wet sump |
| Gear Box | 6 Speed |
| Clutch | Dry, single plate |
| Final Drive | Shaft |
| CHASSIS SPECS | |
| Frame | Three-section composite frame (front and rear sections) with load-bearing engine |
| Front Suspension | BMW Telelever, 35 mm stanchions, central strut, adjustable rebound damping, 110 mm / 4.3 in travel |
| Rear Suspension | Paralever, central strut, hydraulic handwheel spring preload adjustment, adjustable rebound damping, 130 mm / 5.1 in travel |
| Front Brakes | 2 x 320 mm discs, 4 piston calipers |
| Rear Brakes | Single 276 mm disc, 2 piston caliper |
| DIMENSION SPECS | |
| Overall Length | 2180 mm / 85.8 in |
| Overall Width | 880 mm / 34.6 in |
| Overall Height | 1160 mm / 45.6 in |
| Seat Height | 800 mm / 31.4 in |
| Wheelbase | 1478 mm / 58.2 in |
| Ground Clearance | — |
| Dry Weight | 208 kg / 459 lbs |
| Wet Weight | 229 kg / 505 lbs |
| WHEEL SPECS | |
| Front Tyre | 120/70-ZR17 |
| Rear Tyre | 170/60-ZR17 |
| FUEL SYSTEM | |
| Fuel Capacity | 18 Litres / 4.76 US gal |
| Fuel Consumption | 6.0 L/100 km / 16.6 km/l / 39.0 US mpg |
| Top Speed | 226 km/h / 140 mph |
The R 1100S was BMW's sportiest boxer of its time, using a higher-compression 98 hp version of the 1085 cc twin with a new six-speed gearbox. It had a cast aluminium front frame section with the engine as a stressed member, a single-sided Paralever with twin under-seat silencers and a compact half fairing with an ellipsoid headlight. It was aimed at riders wanting a sporty road bike rather than a tourer.
