BMW R 100CS (1983-84) vs BMW R 1100S (1999-2000) vs BMW R 1100RT (1995-96)
Comparison technical specifications
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| Make: | BMW | BMW | BMW |
| Model: | R 100CS | R 1100S | R 1100RT |
| Years: | 1983-84 | 1999-2000 | 1995-96 |
| Engine: | Four stroke, two cylinder horizontally opposed Boxer, 2 valves per cylinder | Four stroke, two cylinder horizontally opposed Boxer, 4 valves per cylinder | Four stroke, two cylinder horizontally opposed Boxer, 4 valves per cylinder |
| Capacity: | 980 cc / 59.8 cu in. | 1085 cc / 66.2 cu in | 1085 cc / 66.2 cu in |
| Bore x Stroke: | 94 x 70.6 mm | 99 x 70.5 mm | 99 x 70.5 mm |
| Cooling System: | Air cooled | Air/Oil cooled | Air/Oil cooled |
| Compression Ratio: | 9.5:1 | 11.3:1 | 10.7:1 |
| Induction: | 2x Constant depression carburetors, Bing 94/40/111 - 94/40/112 | Bosch fuel injection | Fuel injection |
| Ignition: | Battery ignition | Bosch electronic | Electronic ignition MA 2.2 Bosch Motronic |
| Starting: | Electric | Electric | Electric |
| Max Power: | 51 kW / 70 hp @ 7000 rpm | 71.4 kW / 98 hp @ 7500 rpm | 67.1 kW / 90 hp @ 7250 rpm |
| Max Torque: | 76 Nm / 7.75 kgf-m / 56 ft-lb @ 6000 rpm | 97 Nm / 9.9 kgf-m / 71.5 lb-ft.@ 5750 rpm | 95 Nm / 9.7 kgf-m / 69 lb-ft.@ 5500 rpm |
| Clutch: | Dry single plate, with diaphragm spring | Dry, single plate, cable operated | Dry, single plate, cable operated |
| Transmission: | 5 Speed | 6 Speed | 5 Speed |
| Gear Ratio: | 1st 4.40 / 2nd 2.86 / 3rd 2.07 / 4th 1.67 / 5th 1.50:1 | 1st 2.050 / 2nd 1.600 / 3rd 1.270 / 4th 1.040 / 5th 0.900 / 6th 0.800 | 1st 4.16 / 2nd 2.91 / 3rd 2.13 / 4th 1.74 / 5th 1.45:1 |
| Rear Wheel Ratio: | 1:2.91 or 1:3.00 | 1:2.81 | 1:2.81 |
| Final Drive: | Shaft | Shaft | Shaft |
| Frame: | Double sown tubs, dual cradle | Three section composite frame consisting of front & rear section, load bearing engine | Steel, backbone frame |
| Front Suspension: | Telescopic fork with hydraulic shock absorber. | Motorrad Telelever, stanchion diameter 35mm, central strut, rebound damping adjustable. | Telelever with central spring strut & linear-rate coil spring. Twin-tube gas-filled shock |
| Front Wheel Travel: | 200 mm / 7.8 in | 110 mm / 4.3 in | 120 mm / 4.7 in |
| Rear Suspension: | Long swinging arm with adjustable strut. | Paralever, central strut, spring preload adjustable to continuously variable levels by mean of a hydraulic handwheel, rebound adjustable damping. | Paralever swingarm & shaft drive, single-tube gas-filled shock, variable rebound setting |
| Rear Wheel Travel: | 125 mm / 4.9 in | 130 mm / 5.1 in | 135 mm / 5.3 in |
| Front Brakes: | Single ∅260mm disc | 2 x 320mm discs, 4 piston calipers | 2 x ∅305mm discs, 4 piston calipers |
| Rear Brakes: | ∅200 Drum | Single 276mm disc, 2 piston caliper | Single ∅276mm disc, 2 piston caliper |
| Front Tyre: | 3.25 - H19 | 120/70-ZR17 | 120/70-ZR17 |
| Rear Tyre: | 4.00 - H18 | 160/60-ZR18 | 160/60-ZR18 |
| Dimensions: | Length 2110 mm / 83.07 in Width 746 mm / 29.4 in Height 1210 mm / 47.6 in | Length 2180 mm / 85.8 in Width 880 mm / 34.6 in Height 1160 mm / 45.6 in | Length 2205 mm / 86.8 in Width 900 mm / 35.4 in Height 1380 mm / 54.3 in |
| Wheelbase: | 1465 mm / 57.67 in | 1478 mm / 58.2 in | 1485 mm / 58.5 in |
| Seat Height: | 820 mm / 32.3 in | 800 mm / 31.4 in | 800 mm / 31.4 in. Optional adjustable: 780 mm / 30.7 in / 820 mm / 32.3 in |
| Wet Weight: | 220 kg / 484 lbs | 236 kg / 520 lbs | 282 kg / 622 lbs |
| Fuel Capacity: | 24 L / 6.3 US gal | 18 Litres / US 4.76 gal | 23 Litres / US 6.1 gal |
| Consumption Average: | 4.8 L/100 km / 20.8 km/l / 49 US mpg | 6.0 L/100 km / 16.6 km/l / 39.0 US mpg | 6.1 L/100 km / 16.3 km/l / 38.3 US mpg |
| Standing ¼ Mile: | 12.9 sec / 168.7 kmh / 104.8 mph | 12.1 sec / 177.5 km/h / 110.3 mph | 12.7 sec / 168.8 km/h / 104.9 mph |
| Top Speed: | 198 km/h / 123 mph | 218.7 km/h / 135.9 mph | 203.3 km/h / 126.3 mph |