BMW R 100RT Mono (1990-94) vs BMW F 650GS Dakar (2005) vs BMW R 1200GS (2010)
Comparison technical specifications
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| Make: | BMW | BMW | BMW |
| Model: | R 100RT Mono | F 650GS Dakar | R 1200GS |
| Years: | 1990-94 | 2005 | 2010 |
| Engine: | Four stroke, two cylinder horizontally opposed Boxer, 2 valves per cylinder | Four stroke, single cylinder, DOHC, 4 valves per cylinder | Four stroke, two cylinder horizontally opposed Boxer, 4 valves per cylinder |
| Capacity: | 980 cc 59.8 cu in | 652 cc / 39.8 cub. in. | 1170 cc / 71.4 cub in. |
| Bore x Stroke: | 94 x 70.6 mm | 100 x 83mm | 101 x 73 mm |
| Compression Ratio: | 8.45:1 | 11.5:1 | 12.0:1 |
| Induction: | 2 x Constant depression carburettors, Bing 94/40/105 - 94/40/106 | Fuel induction | Electronic intake pipe injection/digital engine management: BMS-K with overrun fuel cut off, dual ignition |
| Ignition: | Battery ignition | Capacitor Discharge Ignition system | BMS-K |
| Alternator: | Bosch 12V/240 W | Three-phase alternator 400W | Three-phase alternator 720W |
| Battery: | Bosch 0.6 hp (from 1978: 0.7 Kw) | 12V / 12Ah | Battery 12 V / 14 Ah, maintenance-free |
| Starting: | Electric | Electric | Electric |
| Max Power: | 43.7 kW / 60 hp @ 7000 rpm | 37.3 kW / 50 hp @ 6800 rpm | 77 kW / 105 hp @ 7500 rpm |
| Max Torque: | 74 Nm / 7.5 kgf-m / 54.6 ft-lb @ 6000 rpm | 60 Nm / 6.12 kgf-m / 44.25 lb-ft. @ 5200 rpm | 115 Nm / 11.7 kgf-m / 84.8 ft/lb @ 5750 rpm |
| Clutch: | Dry single plate, with diaphragm spring | Multiple-disc clutch in oil bath, mechanically operated | Single plate dry clutch, ∅180 mm, hydraulically operated |
| Transmission: | 5 Speed | 5 Speed | 6 Speed |
| Frame: | Double sown tubs, dual cradle | Bridge-type steel section frame with bolted-on rear section | Tubular space frame, engine load-bearing |
| Front Suspension: | Telescopic fork with hydraulic shock absorber. | 41mm Telescopic fork with stabilizer bridge | Telelever, stanchion diameter 41mm, central spring strut, spring preload 9 times mechanically adjustable. |
| Front Wheel Travel: | 200 mm / 7.8 in | 210 mm / 8.3 in. | 190 mm / 7.5 in |
| Rear Suspension: | Monolever swinging arm | Spring setting and rebound stage damping continuously adjustable | Die-cast aluminium single-sided swinging arm with BMW Motorrad Paralever, WAD strut (travel-related damping), spring pre-load hydraulically adjustable to continuously variable levels by means of handwheel, rebound damping adjustable. |
| Rear Wheel Travel: | 125 mm / 4.9 in | 210 mm / 8.3 in. | 200 mm / 7.9 in |
| Front Brakes: | 2 x ∅260mm discs, 2 piston calipers | Single ∅300mm disc, 2 piston caliper | 2 x 305 mm discs, 4 piston caliper |
| Rear Brakes: | Simplex ∅200 mm drum | Single ∅240mm disc, 1 piston caliper | Single 265 mm disc, 2 piston caliper |
| Front Tyre: | 3.25 H-19 | 90/90 S21 | 110/80 ZR19 |
| Rear Tyre: | 4.00 H-18 | 130/80-17 | 150/70 ZR17 |
| Dimensions: | Length 2110 mm / 87 in Width 746 mm / 29.37 in Height 1465 mm / 57.67 in | Length: 2189 mm / 86.2 in. Width: (incl. mirrors) 910 mm / 35.8 in. | Length: 2210 mm / 87.0 in Width: 915 mm / 36.0 in Height: 1450 mm / 57.1 in |
| Seat Height: | 820 mm / 32.3 in | 870 mm / 34.3 in | 850 mm - 870 mm / 33.4 in - 34.2 in |
| Wet Weight: | 238 Kg / 525 lbs | 191 kg / 421.1 lbs. | 229 kg / 505 lbs |
| Fuel Capacity: | 24 Litres / 6.3 US gal | 17.3 Litres / 4.6 US gal. | 20 Litres / 5.2 US gal |
| Consumption Average: | 5.1 L/100 km / 19.6 km/l / 46 US mpg | 4.7 l/100 km / 60.5 mph | 5.8 L/100 km / 17.2 km/l / 40.5 US mpg |
| Standing ¼ Mile: | 13.8 sec / 153 km/h / 95 mph | 14.4 sec | 12.3 sec |
| Top Speed: | 203 km/h / 126 mph | 172 km/h / 106.9 US mpg | 208.4 km/h / 129.5 mph |