BMW R 100RT (1978-80) vs BMW R 100/7 (1978-10) vs BMW K 1200R (2008-10)
Comparison technical specifications
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| Make: | BMW | BMW | BMW |
| Model: | R 100RT | R 100/7 | K 1200R |
| Years: | 1978-80 | 1978-10 | 2008-10 |
| Engine: | Four stroke, two cylinder horizontally opposed Boxer, 2 valves per cylinder | Four stroke, two cylinder horizontally opposed Boxer, 2 valves per cylinder | Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder |
| Capacity: | 980 cc / 59.8 cub in. | 980 cc / 59.8 cu in. | 1157 cc / 70.6 cu in |
| Bore x Stroke: | 94 x 70.6 mm | 94 x 70.6 mm | 79 X 59 mm |
| Cooling System: | Air cooled | Air cooled | Liquid cooled |
| Compression Ratio: | 9.5:1 | 9.1:1 | 13.0:1 |
| Induction: | 2 x Constant depression carburettors, Bing 94/40/105 - 94/40/106 | 2 x 36mm Bing V94 carburetors | Injection |
| Ignition: | Battery ignition | Battery ignition | Electronic |
| Starting: | Electric | Electric | Electric |
| Max Power: | 51 kW / 70 hp @ 7000 rpm | 44.1 KW / 60 hp @ 7000 rpm | 120 kW / 161 hp @ 10250 rpm |
| Max Torque: | 76 Nm / 7.7 kgf-m / 56 ft-lb @ 6000 rpm | 71.5 Nm / 7.29 kgf-m / 53 ft-lb @ 6500 rpm | 127 Nm / 12.9 kgf-m / 93.7 lb-ft @ 8250 rpm |
| Transmission: | 5 Speed | 5 Speed | 6 Speed |
| Final Drive: | Shaft | Shaft | Shaft |
| Frame: | Double sown tubs, dual cradle | Double sown tubs, dual cradle | Bridging frame, die-cast aluminium, load bearing engine |
| Front Suspension: | Telescopic fork with hydraulic shock absorber. | Telescopic fork with hydraulic shock absorber. | BMW Motorrad Duolever; central spring strut, rebound damping electronically adjustable with optional ESA |
| Rear Suspension: | Long swinging arm with adjustable strut. | Long swinging arm with adjustable strut. | Die-cast aluminium single-sided swinging arm with BMW Motorrad Paralever; central spring strut with lever system, spring pre-load adjustable to continuously variable levels by means of hydraulic handwheel (electronically adjustable with optional ESA), adjustable rebound damping (rebound damping and compression electronically adjustable with optional ESA) |
| Front Brakes: | 2 x ∅260mm discs 2 piston calipers | Single ∅260mm disc | 2 x ∅320mm discs, 4 piston calipers |
| Rear Brakes: | Simplex ∅200 mm drum | ∅200mm Drum | Single ∅265mm disc |
| Front Tyre: | 3.25 H-19 | 3.25 - H19 | 120/70-17 |
| Rear Tyre: | 4.00 H-18 | 4.00 - H18 | 180/55-17 |
| Seat Height: | 820 mm / 32.3 in | 810 mm / 31.9 in | 820 mm / 32.3 in. |
| Fuel Capacity: | 24 Litres / 6.3 US gal | 24 L / 6.3 US gal | 19 L / 5.0 US gal |
| Top Speed: | 203 km/h / 126 mph | 188 km/h / 117 mph | 262 km/h / 163 mph |