BMW R 1100 GS
Number sold 31.033 (31.12.1997)
Price 17.450,- DM
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| Type | four-stroke, two-cylinder, horizontally-opposed "Boxer" engine, air-cooled |
| Bore/stroke | 99 x 70,5 mm |
| Cubic capacity | 1085 cm3 |
| Max power | 80 PS (59 kW) at 6750 rpm [78 PS (58 kW) at 6500 rpm] |
| Max torque | 97 Nm at 5250 rpm |
| Compression ratio | 10,3 : 1 |
| Valves per cylinder | 4 |
| Valve control | ohv, using chain drive, cup tappets, push rod and rocker arm |
| Carburation system | electronic injection, Bosch Motronic MA 2.2 |
| Engine lubrication | wet sump |
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| Power transmission | |
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| Clutch | dry single plate, with lever-action diaphragm spring |
| Number of gears | 5 |
| Gear selection | dog-type gearbox (ratchet foot lever) |
| Gear ratios | 4,16 / 2,91 / 2,13 / 1,74 / 1,45 :1 |
| Rear wheel ratio | 1 : 3,00 |
| Bevel/crown wheel | 11 : 33 teeth |
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| Electrical system | |
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| Alternator | 12 V / 700 W |
| Ignition | electronic ignition Bosch Motronic MA 2.2 |
| Starter | 1,1 kW |
| Spark plugs | Bosch FR5 DTC |
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| Suspension | |
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| Type of frame | 3-part tubular space frame, engine serving as load-bearing component |
| Front suspension | BMW Telelever - fork with longitudinal control arm and central strut |
| Rear suspension | BMW Paralever - swinging arm |
| Spring travel | 190 / 200 mm |
| Rims front | 2,50 x 19 |
| Rims rear | 4,00 x 17 |
| Tyres front | 110/80 - H 19 TL |
| Tyres rear | 150/70 - H 17 TL |
| Brakes front | dual-disc brake Ø 305 mm |
| Brakes rear | single disc brake Ø 276 mm |
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| Dimensions and weights | |
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| Length x width x height | 2189 x 920 x 1366 mm |
| Wheel base | 1509 mm |
| Ground clearance | 200 mm |
| Tank capacity | 25 l |
| Unladen weight, full tank | 243 kg |
| Max permissible weight | 450 kg |
| Fuel consumption | 4,6 l / 100 km (at constant 90 km/h) |
| Acceleration | 0 - 100 km/h 4,3 s |
| Top speed | 195 km/h |
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