Comparison of BMW R 1100 RS 1999 and Buell X1 Lightning 2001 [S]ave
| Attribute |  BMW R 1100 RS 1999 × |  Buell X1 Lightning 2001 × |
|---|---|---|
| General | ||
| Production from (year) | 1999 | 2001 |
| Make | BMW | Buell |
| Model | BMW R 1100 RS | Buell X1 Lightning |
| Category | Sport touring | Naked bike |
| Engine and transmission | ||
| Engine type | Two cylinder boxer, four-stroke | V2, four-stroke |
| Valves per cylinder | 4 | 2 |
| Fuel system | Injection | Injection |
| Displacement (cm³) | 1,185 | 1,199 |
| Power (kw) | 65.7 | 64.2 |
| Fuel consumption (l/100km) | 0.65 | - |
| Cooling system | Oil & air | Air |
| Transmission type,final drive | Shaft drive (cardan) | Belt |
| Torque (Nm) | 95 | 104 |
| Bore (mm) | 99 | 88.8 |
| Stroke (mm) | 70.5 | 96.8 |
| Gearbox | 5-speed | 5-speed |
| Greenhouse gases | 15.1 CO2 g/km. (CO2 - Carbon dioxide emission) | - |
| Compression | 10.7:1 | - |
| Chassis | ||
| Front brakes | Dual disc | Single disc |
| Rear brakes | Single disc | Single disc |
| Diameter (mm) | 285 | 230 |
| Front tyre | 120/70-ZR17 | 120/70-ZR17 |
| Rear tyre | 160/60-ZR18 | 170/60-ZR17 |
| Front wheel travel (mm) | 120 | 119 |
| Rear wheel travel (mm) | 135 | 117 |
| Other | ||
| Starter | Electric | Electric |
| Dimensions | ||
| Wheelbase (mm) | 1,473 | 1,410 |
| Kerb weight (kg) | 242 | 217 |
| Seat height (mm) | 780 | 820 |
| Alternate seat height | 820 | - |
| Front percentage of weight | 47.7 | - |
| Performance | ||
| Top speed (km/h) | 217 | 210 |
| Acceleration 0-100 km/h (s) | 4.2 | - |
| Fuel capacity (l) | 23 | 17 |
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