BMW G 650GS Sertao (2014) vs BMW R 80GS (1990-91)
Comparison technical specifications
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| Make: | BMW | BMW |
| Model: | G 650GS Sertao | R 80GS |
| Years: | 2014 | 1990-91 |
| Engine: | Four stroke, single cylinder, DOHC, 4 valves per cylinder | Four stroke, two cylinder horizontally opposed Boxer, pushrod operated 2 valves per cylinder |
| Capacity: | 652 cc / 39.8 cub. in. | 797.5 cc / 48.7 cu in. |
| Bore x Stroke: | 100 x 83mm | 84.8 x 70.6 mm |
| Compression Ratio: | 11.5:1 | 8.2:1 |
| Cooling System: | Liquid cooled | Air cooled |
| Induction: | Fuel induction | 2 x Bing constant depression carburetors |
| Ignition: | Capacitor Discharge Ignition system | Battery ignition |
| Starting: | Electric | Electric |
| Max Power: | 37 kW / 48 hp @ 6500 rpm | 37 kW / 50 hp @ 6500 rpm |
| Max Torque: | 60 Nm / 6.1 kgf-m / 44.25 lb-ft. @ 5000 rpm | 61 Nm / 6.2 kgf-m / 44 ft lb @ 5000 rpm |
| Transmission: | 5 Speed | 5 Speed |
| Final Drive: | Chain | Shaft |
| Frame: | Bridge-type steel section frame with bolted-on rear section | Double loop tubular frame with bolt on rear section |
| Front Suspension: | ∅41mm telescopic fork with stabilizer bridge | ∅40mm Marzocchi telescopic hydraulic forks. |
| Front Wheel Travel: | 210 mm / 8.3 in | 225 mm / 8.8 in |
| Rear Suspension: | Spring setting and rebound stage damping continuously adjustable, | BMW Paralever swinging arm |
| Rear Wheel Travel: | 210 mm / 8.3 in | 180 mm / 7.0 in |
| Front Brakes: | Single ∅300mm disc, 2 piston caliper | Single ∅285mm disc |
| Rear Brakes: | Single ∅240mm disc, 1 piston caliper | ∅200mm Drum |
| Front Tyre: | 90/90 S21 | 90/90 x 21S |
| Rear Tyre: | 130/80-17 | 13/80 x 17S |
| Dimensions: | Length: 2185 mm / 86 in. Width: 920 mm / 36.2 in. (incl. mirrors) Height: 1440 mm / 56.7 in.(excl. mirrors) | Length 2290 mm / 90.1 in Width 1000 mm / 39.3 in Height 1165 mm / 45.8 in |
| Seat Height: | 860 mm to 900 mm / 33.9 in. to 35.4 in. | 850 mm / 33.5 in |
| Wet-Weight: | 191 kg / 421 lbs | 210 kg / 462 lbs |
| Fuel Capacity: | 17.3 Litres / 4.6 US gal. | 24 L / 6.3 US gal |