BMW R 65
Number sold 29.454
Price 7.290,- 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 | 45 PS (33kW) at 7250 rpm [50 PS (37kW) at 7250 rpm] |
| Max torque | 50 Nm at 5500 rpm [52,3 Nm at 6500 rpm] |
| Compression ratio | 9,2 : 1 |
| Valves per cylinder | 2 |
| Valve control | ohv, using push rod and rocker arm |
| Carburation system | 2 constant depression carburettors Bing 64/32/2030 - 2040 or 64/32/307- 308 |
| Engine lubrication | wet sump |
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| Power transmission | |
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| Clutch | dry single plate, with 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 |
| Starter | Bosch 0,7 kW |
| Spark plugs | Bosch W 5 D / Beru 14 - 5 D / Champion N 6 Y |
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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 | long swinging arm with adjustable strut |
| Spring travel | 175 / 110 mm |
| Rims front | 1,85 B 18 |
| Rims rear | 2,50 B 18 |
| Tyres front | 3,25 H 18 or 3,25 S 18 |
| Tyres rear | 4,00 H 18 or 4,00 S 18 |
| 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 | 2210 x 688 x 1090 mm |
| Wheel base | 1400 mm |
| Ground clearance | 130 mm |
| Tank capacity | 22 l |
| Unladen weight, full tank | 205 kg |
| Max permissible weight | 398 kg |
| Fuel consumption | 4,6 l / 100 km (at constant 90 km/h) |
| Acceleration | 0 - 100 km/h 5,9 s [5,8 s] |
| Top speed | 175 km/h |
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