BMW G 650 X Challenge (2008) vs BMW F 650GS Dakar (2008)
Comparison technical specifications
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| Make: | BMW | BMW |
| Model: | G 650 X Challenge | F 650GS Dakar |
| Years: | 2008 | 2008 |
| Engine: | Four stroke, single cylinder, DOHC, 4 valves per cylinder | Four stroke, single cylinder, DOHC, 4 valves per cylinder |
| Capacity: | 652 cc / 39.8 cub in. | 652 cc / 39.8 cub. in. |
| Bore x Stroke: | 100 x 83 mm | 100 x 83mm |
| Compression Ratio: | 11.5:1 | 11.5:1 |
| Cooling: | Liquid cooled | Liquid cooled |
| Lubrication: | Dry sump | Wet sump |
| Induction: | Fuel induction | Fuel induction |
| Ignition: | Capacitor Discharge Ignition system | Capacitor Discharge Ignition system |
| Alternator: | 280-W generator | Three-phase alternator 400W |
| Battery: | 12 V / 10 Ah, maintenance-free | 12V / 12Ah |
| Starting: | Electric | Electric |
| Max Power: | 39 kW / 53 hp @ 7000 rpm | 37.3 kW / 50 hp @ 6800 rpm |
| Max Torque: | 60 Nm / 6.1 kgf-m / 44.3 lb-ft @ 5250 rpm | 60 Nm / 6.12 kgf-m / 44.25 lb-ft. @ 5200 rpm |
| Transmission: | 5 Speed | 5 Speed |
| Final Drive: | Chain | Chain |
| Clutch: | Multicdisc clutch in oil bath, mechanically operated | Multiple-disc clutch in oil bath, mechanically operated |
| Frame: | Bridge-type steel tube frame with bolted die-cast | Bridge-type steel section frame with bolted-on rear section |
| Front Suspension: | ∅45mm Upside-down telescopic fork | 41mm Telescopic fork with stabilizer bridge |
| Front Wheel Travel: | 270 mm / 10.8 in. | 210 mm / 8.3 in. |
| Rear Suspension: | Aluminum 2-unit cast swing arm, air damping | Spring setting and rebound stage damping continuously adjustable |
| Rear Wheel Travel: | 270 mm / 10.8 in. | 210 mm / 8.3 in. |
| Front Brakes: | Single ∅300mm disc, 2 piston calipers | Single ∅300mm disc, 2 piston caliper |
| Rear Brakes: | Single ∅240mm disc, 1 piston calipers | Single ∅240mm disc, 1 piston caliper |
| Wheels: | Wire spoke wheels | Wire spoke wheels |
| Front Tyre: | 90/90 S 21 | 90/90 S21 |
| Rear Tyre: | 120/70 S 18 | 130/80-17 |
| Castor: | 118 mm / 4.6 in. | 123 mm / 4.8 in. |
| Steering Head Angle: | 62.5° | 60.8° |
| Dimensions: | Length: 2205 mm / 86.8 in. Width: 907 mm / 35.7 in. (incl. mirrors) Height: 1255 mm / 49.4 in. (excl. mirrors) | Length: 2189 mm / 86.2 in. Width: (incl. mirrors) 910 mm / 35.8 in. |
| Wheelbase: | 1500 mm / 59.1 in. | 1479 mm / 58.2 in. |
| Seat Height: | 930 mm / 36.6 in (low seat: 910 mm / 35.8 in.) | 870 mm / 34.3 in |
| Dry Weight: | 144 kg / 317 lbs. | 176 kg / 388 lbs. |
| Wet Weight: | 156 kg / 344 lbs. | 191 kg / 421.1 lbs. |
| Fuel Capacity: | 9.5 Litres / 2.5 US gal | 17.3 Litres / 4.6 US gal. |
| Reserve: | Approx 2 Litres / 0.5 US gal. | Approx. 4.5 Litres / 1.2 US gal. |
| Consumption Average: | 5.2 L/100 km / 19.3 km/l / 45.4 US mpg | 4.7 l/100 km / 60.5 mph |
| Standing ¼ Mile: | 14.0 sec | 14.4 sec |
| Top Speed: | 162.9 km/h / 101 mph. | 172 km/h / 106.9 US mpg |