BMW R 65 (1980-) vs BMW R 100GS (1989-90)
Comparison technical specifications
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| Make: | BMW | BMW |
| Model: | R 65 | R 100GS |
| Years: | 1980- | 1989-90 |
| Engine: | Four stroke, two cylinder horizontally opposed Boxer, pushrod operated 2 valves per cylinder. | Four stroke, two cylinder horizontally opposed Boxer, 2 valves per cylinder |
| Capacity: | 649.6 cc / 39.6 cu in. | 980 cc / 59.8 cu in. |
| Bore x Stroke: | 82 x 61.5 mm | 94 x 70.6 mm |
| Compression Ratio: | 9.2:1 | 8.5:1 |
| Induction: | 2 x Bing constant depression carburetors | 2 x Bing carburetors |
| Ignition: | Bosch contact free electronic ignition | Electronic ignition, Bosch |
| Starting: | Electric | Electric |
| Max Power: | 45 hp / 32.8 kw @ 7250 rpm | 44 kW / 60 hp @ 6500 rpm |
| Max Torque: | 45 Nm / 4.6 kgf-m / 33.2 lb-ft @ 6000 rpm | 76 Nm / 7.75 kgf-m / 56 ft-lb @ 3750 rpm |
| Transmission: | 5 Speed | 5 Speed |
| Final Drive: | Shaft | Shaft |
| Front Suspension: | Telescopic hydraulic forks | Telescopic fork with hydraulic shock absorber. |
| Front Wheel Travel: | 175 mm / 6.9" | 225 mm / 8.8 in |
| Rear Suspension: | Long swinging arm with adjustable strut | Paralever adjustable preload, rebound damping compression |
| Rear Wheel Travel: | 110 mm / 4.3" | 180 mm / 7.0 in |
| Front Brakes: | Single disc | Single ∅285mm disc, 2 piston caliper |
| Rear Brakes: | Drum | ∅200 Drum |
| Front Tyre: | 3.25 -18 | 90/90-21 |
| Rear Tyre: | 4.00 -18 | 130/80-17 |
| Wet-Weight: | 210 kg / 463 lbs | 210 kg / 462 lbs |
| Fuel Capacity: | 22 Litrds / 5.8 US gal | 24 L / 6.3 US gal |
| Road Test: | BMW R650v 1979 R650vs CX500 | Adventure Group test Motosprint 1988 |