BMW R 100RS (1977) vs BMW F 650GS Dakar (2007)
Comparison technical specifications
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| Make: | BMW | BMW |
| Model: | R 100RS | F 650GS Dakar |
| Years: | 1977 | 2007 |
| Engine: | Four stroke, two cylinder horizontally opposed Boxer, 2 valves per cylinder | Four stroke, single cylinder, DOHC, 4 valves per cylinder |
| Capacity: | 980 cc / 59.8 cub in. | 652 cc / 39.8 cub. in. |
| Bore x Stroke: | 94 x 70.6 mm | 100 x 83mm |
| Compression Ratio: | 9.5:1 | 11.5:1 |
| Lubrication: | Wet sump | Wet sump |
| Induction: | 2 x Constant depression carburettors, Bing 94/40/105 - 94/40/106 | Fuel induction |
| Ignition: | Battery ignition | Capacitor Discharge Ignition system |
| Alternator: | Bosch 12V/240 W | Three-phase alternator 400W |
| Starting: | Electric | Electric |
| Max Power: | 51 kW / 70 hp / @ 7000 rpm | 37.3 kW / 50 hp @ 6800 rpm |
| Max Torque: | 76 Nm / 7.75 kgf-m / 56 ft-lb @ 6000 rpm | 60 Nm / 6.12 kgf-m / 44.25 lb-ft. @ 5200 rpm |
| Clutch: | Dry single plate, with diaphragm spring | Multiple-disc clutch in oil bath, mechanically operated |
| Transmission: | 5 Speed | 5 Speed |
| Final Drive: | Shaft | Chain |
| Frame: | Double sown tubs, dual cradle | Bridge-type steel section frame with bolted-on rear section |
| Front Suspension: | Telescopic fork with hydraulic shock absorber. | 41mm Telescopic fork with stabilizer bridge |
| Front Wheel Travel: | 200 mm / 7.8 in | 210 mm / 8.3 in. |
| Rear Suspension: | Long swinging arm with adjustable strut. | Spring setting and rebound stage damping continuously adjustable |
| Rear Wheel Travel: | 125 mm / 4.9 in | 210 mm / 8.3 in. |
| Front Brakes: | 2 x ∅260mm discs, 2 piston calipers | Single ∅300mm disc, 2 piston caliper |
| Rear Brakes: | Simplex ∅200 mm drum | Single ∅240mm disc, 1 piston caliper |
| Front Tyre: | 3.25 - H19 | 90/90 S21 |
| Rear Tyre: | 4.00 - H18 | 130/80-17 |
| Dimensions: | Length 2130 mm / 83.8 in Width 746 mm / 29.37 in Height 1300 mm / 51.8 in | Length: 2189 mm / 86.2 in. Width: (incl. mirrors) 910 mm / 35.8 in. |
| Wheelbase: | 1465 mm / 57.67 in | 1479 mm / 58.2 in. |
| Seat Height: | 820 mm / 32.3 in | 870 mm / 34.3 in |
| Wet Weight: | 230 kg / 506 lbs | 191 kg / 421.1 lbs. |
| Fuel Capacity: | 24 Litres / 6.3 US gal | 17.3 Litres / 4.6 US gal. |
| Consumption Average: | 4.8 L/100 km / 20.8 km/l / 49 US mpg | 4.7 l/100 km / 60.5 mph |
| Standing ¼ Mile: | 13.9 sec / 157 km/h / 97.3 mph | 14.4 sec |
| Top Speed: | 196 km/h / 121.5 mph | 172 km/h / 106.9 US mpg |