BMW R 100 GS
Number sold 34.007
Price 12.990,- DM
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| Type | four-stroke, two-cylinder, horizontally-opposed "Boxer" engine, air-cooled |
| Bore/stroke | 94 x 70,6 mm |
| Cubic capacity | 980 cm3 |
| Max power | 60 PS (44kW) at 6500 rpm |
| Max torque | 76 Nm at 3750 rpm |
| Compression ratio | 8,5 : 1 |
| Valves per cylinder | 2 |
| Valve control | ohv, using push rod and rocker arm |
| Carburation system | 2 constant depression carburettors Bing 94/40/123 - 94/40/124 |
| 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 | 4,4 / 2,86 / 2,07 / 1,67 / 1,50 :1 |
| Rear wheel ratio | 1 : 3,09 |
| Bevel/crown wheel | 11 : 34 teeth |
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| Electrical system | |
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| Alternator | Bosch 280 W |
| Ignition | Contact-free electronic ignition (Bosch) |
| Starter | Bosch 0,7 kW |
| Spark plugs | W 7 DC / Beru 14 - 7 DU / Champion N 9 YC |
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| Suspension | |
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| Type of frame | double-loop tubular frame with bolt-on rear section |
| Front suspension | telescopic fork with hydraulic shock absorber |
| Rear suspension | BMW Paralever - swinging arm |
| Spring travel | 225 / 180 mm |
| Rims front | 1,85 - 21 MTH 2 |
| Rims rear | 2,50 - 17 MTH 2 |
| Tyres front | 90/90 21 S |
| Tyres rear | 130/80 17 S |
| Brakes front | single disc brake Ø 285 mm |
| Brakes rear | Simplex drum brake Ø 200 mm |
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| Dimensions and weights | |
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| Length x width x height | 2290 x 1000 x 1165 mm [Paris-Dakar: height 1365 mm] |
| Wheel base | 1514 mm |
| Ground clearance | 200 mm |
| Tank capacity | 24 l [Paris-Dakar: 35 l] |
| Unladen weight, full tank | 210 kg [Paris-Dakar: 236 kg] |
| Max permissible weight | 420 kg |
| Fuel consumption | 4,9 l / 100 km (at constant 90 km/h) |
| Acceleration | 0 - 100 km/h 4,8 s |
| Top speed | 181 km/h [Paris-Dakar: 180 km/h] |
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