BMW R 100CS (1983-84) vs BMW R 1100S (1999-2000) vs BMW R 1100RT (1995-96) vs BMW R 110RR Rally (1999)
Comparison technical specifications
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| Make: | BMW | BMW | BMW | BMW |
| Model: | R 100CS | R 1100S | R 1100RT | R 110RR Rally |
| Years: | 1983-84 | 1999-2000 | 1995-96 | 1999 |
| 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 | Four stroke, two cylinder horizontally opposed Boxer air/oil-cooled, 4 valves per cylinder |
| Capacity: | 980 cc / 59.8 cu in. | 1085 cc / 66.2 cu in | 1085 cc / 66.2 cu in | 1085 cc / 66.2 cu in |
| Induction: | 2x Constant depression carburetors, Bing 94/40/111 - 94/40/112 | Bosch fuel injection | Fuel injection | BING-CP (constant pressure) |
| Starting: | Electric | 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 | 63.4 kW / 85 hp @ 8200 rpm |
| Transmission: | 5 Speed | 6 Speed | 5 Speed | 6 Speed |
| Final Drive: | Shaft | Shaft | Shaft | Shaft |
| 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 | ∅48mm Forks, WP. |
| Front Wheel Travel: | 200 mm / 7.8 in | 110 mm / 4.3 in | 120 mm / 4.7 in | 300 mm / 11.8 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 | WP shock |
| Rear Wheel Travel: | 125 mm / 4.9 in | 130 mm / 5.1 in | 135 mm / 5.3 in | 300 mm / 11.8 in |
| Front Brakes: | Single ∅260mm disc | 2 x 320mm discs, 4 piston calipers | 2 x ∅305mm discs, 4 piston calipers | Single ∅300mm disc, 2 piston caliper |
| Rear Brakes: | ∅200 Drum | Single 276mm disc, 2 piston caliper | Single ∅276mm disc, 2 piston caliper | Single ∅285mm disc, 2 piston caliper |
| Front Tyre: | 3.25 - H19 | 120/70-ZR17 | 120/70-ZR17 | 90/90 -21 |
| Rear Tyre: | 4.00 - H18 | 160/60-ZR18 | 160/60-ZR18 | 140/80 -18 |
| 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 | 995 mm / 37.6 in |
| Fuel Capacity: | 24 L / 6.3 US gal | 18 Litres / US 4.76 gal | 23 Litres / US 6.1 gal | 31 Litres / 8.2 US gal |