BMW R 850GS (1996-98) vs BMW R 100RS (1976)
Comparison technical specifications
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| Make: | BMW | BMW |
| Model: | R 850GS | R 100RS |
| Years: | 1996-98 | 1976 |
| Engine: | Four stroke, two-cylinder, horizontally-opposed Boxer engine, 4 valves per cylinder | Four stroke, two cylinder horizontally opposed Boxer, 2 valves per cylinder |
| Capacity: | 848 cc / 51.7 cu in. | 980 cc / 59.8 cub in. |
| Bore x Stroke: | 87.5 x 70.5 mm | 94 x 70.6 mm |
| Cooling System: | Air/Oil-cooled | Air cooled |
| Compression Ratio: | 10.3:1 | 9.5:1 |
| Lubrication: | Wet sump | Wet sump |
| Induction: | Electronic injection, Bosch Motronic | 2 x Constant depression carburettors, Bing 94/40/105 - 94/40/106 |
| Ignition: | Electronic Bosch Motronic MA 2.4 | Battery ignition |
| Alternator: | 12 V 700 W | Bosch 12V/240 W |
| Starting: | Electric | Electric |
| Max Power: | 53.2 kW / 73 hp @ 6750 rpm | 51 kW / 70 hp / @ 7000 rpm |
| Max Torque: | 77 Nm / 7.85 kgf-m / 56 ft/lb @ 5600 rpm | 76 Nm / 7.75 kgf-m / 56 ft-lb @ 6000 rpm |
| Clutch: | Dry single plate, with lever action diaphragm spring | Dry single plate, with diaphragm spring |
| Transmission: | 5 Speed | 5 Speed |
| Final Drive: | Shaft | Shaft |
| Gear Ratio: | 1st 4.16 / 2nd 2.91 / 3rd 2.13 / 4th 1.74 / 5th 1.45:1 | 1st 4.40 / 2nd 2.86 / 3rd 2.07 / 4th 1.67 / 5th 1.50:1 |
| Rear Wheel Ratio: | 1:3.36 | 1:2.91 or 1:3.00 |
| Frame: | Three section composite frame consisting of front & rear section, load bearing engine | Double sown tubs, dual cradle |
| Front Suspension: | BMW Telelever fork with longitudinal control arm and central strut | Telescopic fork with hydraulic shock absorber. |
| Front Wheel Travel: | 190 mm / 7.4 in | 200 mm / 7.8 in |
| Rear Suspension: | BMW Paralever swinging arm | Long swinging arm with adjustable strut. |
| Rear Wheel Travel: | 200 mm / 7.9 in | 125 mm / 4.9 in |
| Front Brakes: | 2 x ∅305mm discs, 4 piston calipers | 2 x ∅260mm discs, 2 piston calipers |
| Rear Brakes: | Single ∅276mm disc, 2 piston caliper | Simplex ∅200 mm drum |
| Front Wheel: | BMW cross spoke wheels 2.50 x 19 MT H2 | 2.15 - B19 |
| Rear Wheel: | BMW cross spoke wheels 4.00 x 17 MT H2 | 2.50 - B18 |
| Front Tyre: | 110 / 80 - R19 59 H | 3.25 - H19 |
| Rear Tyre: | 150 / 70 - R17 69 H | 4.00 - H18 |
| Dimensions: | Length 2196 mm / 86.4 in Width 920 mm / 36.2 in Height 1360 mm / 53.7 in | Length 2130 mm / 83.8 in Width 746 mm / 29.37 in Height 1300 mm / 51.8 in |
| Wheelbase: | 1509 mm / 59.4 in | 1465 mm / 57.67 in |
| Seat Height: | 840 mm - 860 mm / 33.0 in - 33.8 in | 820 mm / 32.3 in |
| Wet-weight: | 234.4 kg / 516.7 lbs | 230 kg / 506 lbs |
| Ground Clearance: | 200 mm / 7.9 in | 165 mm / 6.49 in |
| Fuel Capacity: | 24 L / 6.3 US gal | 24 Litres / 6.3 US gal |
| Consumption Average: | 5.5 L/100 km / 18.2 km/l / 42.8 US mpg | 4.8 L/100 km / 20.8 km/l / 49 US mpg |
| Standing ¼ Mile: | 13.0 sec | 13.9 sec / 157 km/h / 97.3 mph |
| Top Speed: | 185 km/h / 115 mph | 196 km/h / 121.5 mph |