BMW R 1250RT (2020) vs BMW R 1100RT (1997-98)
Comparison technical specifications
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| Make: | BMW | BMW |
| Model: | R 1250RT | R 1100RT |
| Years: | 2020 | 1997-98 |
| Engine: | Four stroke, two cylinder horizontally opposed Boxer, with two overhead, spur gear driven camshafts , a counterbalance shaft and variable intake camshaft control system BMW ShiftCam, 4 valves per cylinder, Intake 40mm, outlet 34 mm | Four stroke, two cylinder horizontally opposed Boxer, 4 valves per cylinder |
| Capacity: | 1254 cc / 76.5 cu-in | 1085 cc / 66.2 cu in |
| Bore x Stroke: | 102.5 x 76 mm | 99 x 70.5 mm |
| Compression Ratio: | 12.5:1 | 10.7:1 |
| Cooling System: | Liquid / Air cooled | Air/Oil cooled |
| Induction: | Electronic intake pipe injection, 52mm Ø throttle valve | Fuel injection |
| Starting: | Electric | Electric |
| Max Power: | 136 hp / 100 kW @ 7750 rpm | 67.1 kW / 90 hp @ 7250 rpm |
| Max Torque: | 143 Nm / 105.4 lb-ft @ 6250 rpm | 95 Nm / 9.7 kgf-m / 69 lb-ft.@ 5500 rpm |
| Clutch: | Wet clutch with anti-hopping function, hydraulically activated | Dry, single plate, cable operated |
| Transmission: | Constant mesh 6-speed gearbox with helical gearing system | 5 Speed |
| Final Drive: | Shaft | Shaft |
| Frame: | Two-section frame concept consisting of main frame with bolt-on rear frame, load-bearing engine | Steel, backbone frame |
| Front Suspension: | BMW Motorrad 37mm Telelever, central spring strut | Telelever with central spring strut & linear-rate coil spring. Twin-tube gas-filled shock |
| Front Wheel Travel: | 120 mm / 4.7 in | 120 mm / 4.7 in |
| Rear Suspension: | Cast aluminium single-sided swing arm with BMW Motorrad Paralever, WAD spring strut, continuously adjustable spring preload by means of hand wheel, rebound-stage damping adjustable by hand wheel (Option: Dynamic ESA) | Paralever swingarm & shaft drive, single-tube gas-filled shock, variable rebound setting |
| Rear Wheel Travel: | 136 mm / 5.3 in | 135 mm / 5.3 in |
| Front Brakes: | 2x 320mm floating discs, 4-piston radial brake calipers | 2 x 305mm discs, 4 piston calipers |
| Rear Brakes: | Single 276mm disc, 2-piston floating caliper | Single 276mm disc, 2 piston caliper |
| Front Tyre: | 120/70 ZR17 | 120/70-ZR17 |
| Rear Tyre: | 180/55 ZR17 | 160/60-ZR18 |
| Dimensions: | Length 2222 mm / 87.4 in Width 985 mm / 38.7 in | Length 2205 mm / 86.8 in Width 900 mm / 35.4 in Height 1380 mm / 54.3 in |
| Wheelbase: | 1485 mm / 58.4 in | 1485 mm / 58.5 in |
| Seat Height: | 805 mm to 825 mm / 31.6 in to 32.4 in 760 mm to 850 mm / 29.9 in to 33.4 in - optional | 800 mm / 31.4 in. Optional adjustable: 780 mm / 30.7 in / 820 mm / 32.3 in |
| Wet Weight: | 279 kg / 615 lbs | 282 kg / 622 lbs |
| Fuel Capacity: | 25 Litres / 6.6 US gal | 23 Litres / US 6.1 gal |