BMW R 90S (1973-76) vs BMW F 800GS Adventure (2015)
Comparison technical specifications
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| Make: | BMW | BMW |
| Model: | R 90S | F 800GS Adventure |
| Years: | 1973-76 | 2015 |
| Engine: | Four stroke, two cylinder horizontally opposed Boxer, pushrod operated 2 valves per cylinder. | Four stroke, parallel twin cylinder, DOHC, 4 valves per cylinder |
| Capacity: | 898 cc / 54.8 cu in. | 798 cc / 47.7 cub. in. |
| Bore x Stroke: | 90 x 70.6 mm | 82 x 75.8 mm |
| Compression Ratio: | 9.5:1 | 12.0:1 |
| Lubrication: | Gear driven pump | Dry sump |
| Induction: | 2 x slide Dell'Orto PHM 38 carburetors | Electronic intake injection, ∅45mm throttle bodies |
| Ignition: | Kettering | Digital CDI |
| Starting: | Electric | Electric |
| Clutch: | Dry single plate, with diaphragm spring | Multiplate-plate in oil bath |
| Max Power: | 48.8 kW / 67 hp @ 7000 rpm | 62.5 kW / 85 hp @ 7500 rpm |
| Max Torque: | 76 Nm / 7.6 kgf-m / 55 ft-lb @ 5500 rpm | 80 Nm / 8.2 kgf-m / 59 lb-ft @ 5750 rpm |
| Transmission: | 5 Speed | 6 Speed |
| Final Drive: | Shaft | Chain |
| Frame: | Double-loop tubular frame with bolt-on rear section | Tubular frame in steal partly carrying the engine |
| Front Suspension: | Telescopic fork with hydraulic shock absorber | 43mm Marzocchi upside down forks |
| Front Wheel Travel: | 208 mm / 8.1 in | 230 mm / 9.1 in. |
| Rear Suspension: | Long swinging arm with adjustable strut. | Double strut swing arm aluminium coast in one piece |
| Rear Wheel Travel: | 125 mm / 4.9 in | 215 mm / 8.5 in. |
| Front Brakes: | 2 x ∅260mm discs, 1 piston caliper | 2 x ∅300mm discs, 4 piston calipers, ABS |
| Rear Brakes: | ∅200mm Drum | Single ∅265mm disc, 2 piston caliper, ABS |
| Front Tyre: | 3.25 - H19 | 90/90 - 21 54V |
| Rear Tyre: | 4.00 - H18 | 150/70 - 17 69V |
| Dimensions: | Length 2180 mm / 85.82 in Width 740 mm / 29.13 in Height 1210 mm / 47.63 in | Length 2304 mm / 90.7 in Width 925 mm / 36.4 in (incl. mirrors) Height 1450 mm / 57.1 in (excl. mirrors) |
| Seat Height: | 820 mm / 32.2 in | 890 mm / 860 mm / 35 in. / 33.9 in. |
| Wet Weight: | 215 Kg / 473 lbs | 229 kg / 505 lbs |
| Fuel Capacity: | 24 Litres / 6.3 US gal | 24 Litres / 6.3 US gal. |
| Consumption Average: | 5.1 L/100 km / 19.6 km/l / 46 mpg | 4.3 L/100km / 23.3 km/l / 55 mpg |
| Standing ¼ Mile: | 13.3 sec / 163 km/h / 101 mph | 12.5 sec |
| Top Speed: | 200 km/h / 124 mph | 199.0 km/h / 124 mph |