Yamaha IT 490 (1983) vs BMW R 1200GS (2006)
Comparison technical specifications
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| Make: | Yamaha | BMW |
| Model: | IT 490 | R 1200GS |
| Years: | 1983 | 2006 |
| Engine: | Two stroke, single cylinder, read valve | Four stroke, two cylinder horizontally opposed Boxer, 4 valves per cylinder |
| Capacity: | 487 cc / 29.7 cu-in | 1170 cc / 71.4 in. |
| Bore x Stroke: | 87 x 82 mm | 101 x 73 mm |
| Cooling System: | Air cooled | Air/oil cooled |
| Compression Ratio: | 4.9;1 | 11.0:1 |
| Induction: | VM38SS Mikuni carburetor | Electronic intake pipe injection/digital engine management: BMS-K with overrun fuel cut off, dual ignition |
| Ignition: | CDI | BMS-K |
| Max Power: | 35 hp @ 6000 rpm | 72 kW / 98 hp @ 7000 rpm |
| Max Torque: | 31 lb-ft @ 5500 rpm | 115 Nm / 11.7 kgf-m / 84.8 ft-lbs @ 5500 rpm |
| Transmission: | 5 Speed | 6 Speed |
| Final Drive: | Chain | Shaft |
| Front Suspension: | 43mm Telescopic adjustable forks | Telelever, stanchion ∅41mm, central spring strut, spring preload 9 times mechanically adjustable. |
| Front Wheel Travel: | 300 mm / 11.8 in | 190 mm / 7.5 in. |
| Rear Suspension: | Mono shock, adjustable spring preload and rebound damping | 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. |
| Rear Wheel Travel: | 300 mm / 11.8 in | 200 mm / 7.9 in. |
| Front Brakes: | Drum | 2 x ∅305mm discs, 4 piston caliper |
| Rear Brakes: | Drum | Single ∅265 mm disc, 2 piston caliper |
| Front Tyre: | 3.00 -21 | 110/80 ZR19 |
| Rear Tyre: | 150/80 -18 | 150/70 ZR17 |
| Wheelbase: | 1435 mm / 56.5 in | 1507 mm / 59.3 in |
| Seat Height: | 944 mm / 37.2 in | 895 - 915 mm / 35.2 - 36.0 in |
| Dry Weight: | 112.5 kg / 248 lbs | 199 kg / 439 lbs |
| Fuel Capacity: | 13.6 Litres / 3.6 US gal | 20 Litres / 5.2 US gal |