Yamaha XT 500 (1979) vs BMW R 65GS (1987)
Comparison technical specifications
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| Make: | Yamaha | BMW |
| Model: | XT 500 | R 65GS |
| Years: | 1979 | 1987 |
| Engine: | Four stroke, single cylinder, SOHC, 2 valve | Four stroke, two cylinder horizontally opposed Boxer, pushrod operated 2 valves per cylinder. |
| Capacity: | 499 cc / 30.5 cuin | 649.6 cc / 39.6 cu in. |
| Bore x Stroke: | 87 х 84 mm | 82 x 61.5 mm |
| Cooling System: | Air cooled | Air cooled |
| Compression Ratio: | 9.0 :1 | 8.4:1 |
| Induction: | 32mm Mikuni VM32SS carburetor | 2 x Bing constant depression carburetors |
| Ignition: | Magneto, CB/coil | Bosch electronic |
| Max Power: | 32 hp / 23.5 kW @ 6500 rpm | 33 kW / 45 hp 33 kW @ 7250 rpm |
| Max Torque: | 4.0 kgf-m / 39.2 Nm @ 5500 rpm | 45.1 Nm / 4.6 kgf-m 33.3 lb-ft. @ 6000 rpm |
| Transmission: | 5 Speed | 5 Speed |
| Final Drive: | Chain | Shaft |
| Front Suspension: | Leading axle coil spring fork | Telescopic hydraulic forks |
| Rear Suspension: | Swing arm adjustable preload | Monolever - swinging arm |
| Front Brakes: | Single 160mm drum | Single ∅260mm disc |
| Rear Brakes: | Single 150mm drum | Simple ∅200mm drum |
| Front Tyre: | 3.00-21 | 3.00-21" |
| Rear Tyre: | 4.00-18 | 4.00-18" |
| Fuel Capacity: | 8.8 Litres / 2.3 US gal | 19.5 L / 5.2 US gal |