BMW R 80RT Mono (1984-85) vs BMW K 11000 RS (1993-94) vs BMW R 1200GS Adventure (2011) vs BMW R 1200R (2013) vs BMW F 650GS (2010)
Comparison technical specifications
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| Make: | BMW | BMW | BMW | BMW | BMW |
| Model: | R 80RT Mono | K 11000 RS | R 1200GS Adventure | R 1200R | F 650GS |
| Years: | 1984-85 | 1993-94 | 2011 | 2013 | 2010 |
| Engine: | Four stroke, two cylinder horizontally opposed Boxer, pushrod operated 2 valves per cylinder. | Four-stroke, horizontal in line four cylinder, DOHC, 4 valve per cylinder | Four stroke, two cylinder horizontally opposed Boxer, DOHC, 4 valves per cylinder | Four stroke, two cylinder horizontally opposed Boxer, DOHC, 4 valves per cylinder | Four stroke, parallel twin cylinder, DOHC, 4 valves per cylinder |
| Capacity: | 797.5 cc / 48.7 cu in. | 1092 cc / 66.6 cu in | 1170 cc / 71.4 cub in. | 1170 cc / 71.4 cu in | 798 cc / 47.7 cub. in. |
| Bore x Stroke: | 84.8 x 70.6 mm | 70.5 x 70 mm | 101 x 73 mm | 101 x 73 mm | 82 x 75.8 mm |
| Cooling System: | Air cooled | Liquid cooled | Air/oil cooled | Air/Oil-cooled | Liquid cooled |
| Compression Ratio: | 8.2:1 | 11.0:1 | 12.0:1 | 11.0:1 | 12.0:1 |
| Induction: | 2 x Bing constant depression carburetors | Electronic injection, Bosch Motronic | BMS-K+, 50mm Throttle butterfly dia | Electronic intake manifold injection BMS-K | Electronic intake injection, ∅45mm throttle bodies |
| Max Power: | 36.4 kW / 50 hp @ 6500 rpm | 72.9 kW / 100 hp @ 7500 rpm (70.8 kW 94.9 hp @ 7400 rpm at rear wheel) | 81 kW / 110 hp @ 7750 rpm | 81 kW / 110 hp @ 7750 rpm | 52 kW / 71 hp @ 7000 rpm |
| Max Torque: | 59 Nm / 6.0 kgf-m / 43 ft lb @ 3500 rpm | 107 Nm / 10.9 kgf-m / 78.9 ft lb @ 5500 rpm | 120 Nm / 12.2 kgf-m / 88 lb-ft @ 6000 rpm | 120 Nm / 12.2 kgf-m / 88 lb-ft @ 6000 rpm | 75 Nm / 5.3 kgf-m / 55 lb-ft @ 4800 rpm |
| Transmission: | 5 Speed | 5 Speed | 6 Speed | 6 Speed | 6 Speed |
| Front Suspension: | Telescopic hydraulic forks. | ∅43 mm Telescopic fork with hydraulic shock absorber | Telelever, stanchion ∅41mm, central spring strut, spring preload 9 times mechanically adjustable. | BMW Motorrad Telelever; stanchion diameter 41 mm, central spring strut | ∅41mm telescopic fork |
| Rear Suspension: | Long swinging arm with adjustable strut. | Monolever swinging arm | 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. | Cast aluminium single-sided swing arm with BMW Motorrad Paralever; central spring strut, spring pre-load hydraulically adjustable (continuously variable) at handwheel, rebound damping adjustable | Double strut swing arm aluminium coast in one piece |
| Front Brakes: | 2 x ∅260mm discs, 1 piston caliper | 2 x ∅305mm discs, 4 piston calipers | 2x ∅305mm Discs, 4 piston caliper, Optional: BMW Motorrad Integral ABS | 2 x 320mm Discs, ABS | Single ∅300mm disc, 2 piston caliper |
| Rear Brakes: | Single ∅200mm drum | Single ∅285mm disc, 1 piston caliper | Single ∅265mm disc, 2 piston caliper, Optional: BMW Motorrad Integral ABS | Single 265mm disc, ABS | Single ∅265mm disc, 1 piston caliper |
| Front Tyre: | 3.25 - H19 | 120/70 ZR17 | 110/80 ZR19 | 120/70-ZR 17 | 110/80-R19 |
| Rear Tyre: | 4.00 - H18 | 160/60 ZR18 | 150/70 ZR17 | 180/55-ZR 17 | 140/80-R17 |
| Wet Weight: | 235 kg / 417 lbs | 268 kg / 591 lbs | 256 kg / 564 lbs (road ready, fully fueled ) | 223 kg / 492 lbs | 198 kg / 436.5 lbs |
| Fuel Capacity: | 24 Litres / 6.3 gal | 22 L / 5.8 US gal | 33 L / 8.7 US gal | 18 Litres / 4.7 US gal | 16 L / 4.2 US gal |
| Consumption Average: | 4.9 L/100 km / 20.4 km/l / 48 mpg | 6.6 L/100 km / 15.1 km/l / 35.5 US mpg | 6.3 L/100 km / 15.7 km/l / 36.9 US mpg | 5.2 L/100 km / 19.2 km/l / 45.2 US mpg | 5 l/100 km / 46.6 US mpg. |
| Top Speed: | 171 km/h / 106 mph | 224.8 km/h / 139.7 mph | 193 km/h / 120 mph | 220 km/h / 137 mph | 191.7 km/h / 119 mph |