BMW R 65 GS
Number sold 1.727
Price 9.450,- DM
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| Type | four-stroke, two-cylinder, horizontally-opposed "Boxer" engine, air-cooled |
| Bore/stroke | 82 x 61,5 mm |
| Cubic capacity | 649,6 cm3 |
| Max power | 27 PS (20kW) at 5500 rpm |
| Max torque | 43 Nm at 3500 rpm |
| Compression ratio | 8,4 : 1 |
| Valves per cylinder | 2 |
| Valve control | ohv, using push rod and rocker arm |
| Carburation system | 2 constant depression carburettors Bing V 64/32/317 - 318 |
| 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 : 3,44 |
| Bevel/crown wheel | 9 : 31 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 Monolever - swinging arm |
| Spring travel | 200 / 170 mm |
| Rims front | 1,85 x 21 WM |
| Rims rear | 2,50 x 18 WM |
| Tyres front | 3,00 - 21 48 R |
| Tyres rear | 4,00 - 18 64 R |
| Brakes front | single disc brake Ø 260 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 | 2230 x 820 x 1150 mm |
| Wheel base | 1465 mm |
| Ground clearance | 218 mm |
| Tank capacity | 19,5 l |
| Unladen weight, full tank | 198 kg |
| Max permissible weight | 398 kg |
| Fuel consumption | 5,0 l / 100 km (at constant 90 km/h) |
| Acceleration | 0 - 100 km/h 9,4 s |
| Top speed | 146 km/h |
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