BMW F 750GS (2018) vs BMW R 3 (1936) vs BMW R 100RS (1978-79)
Comparison technical specifications
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| Make: | BMW | BMW | BMW |
| Model: | F 750GS | R 3 | R 100RS |
| Years: | 2018 | 1936 | 1978-79 |
| Engine: | Four stroke, parallel twin cylinder, DOHC, 4 valves per cylinder | Four stroke, single cylinder vertical | Four stroke, two cylinder horizontally opposed Boxer, 2 valves per cylinder |
| Capacity: | 853 cc / 52 ci-in | 305 cc / 18.6 cu in. | 980 cc / 59.8 cub in. |
| Bore x Stroke: | 84 x 77mm | 68 x 84 mm | 94 x 70.6 mm |
| Compression Ratio: | 12.7:1 | 6.0:1 | 9.5:1 |
| Induction: | Electronic intake injection | 1 x Register carburettor SUM type CK 3/500 | 2 x Constant depression carburettors, Bing 94/40/105 - 94/40/106 |
| Ignition: | Knock control and oxygen sensors. | Battery ignition | Battery ignition |
| Starting: | Electric | Kick | Electric |
| Max Power: | 77 hp / 57.4 kW @ 7500rpm | 8.2 kW / 11hp @ 4200 rpm | 51 kW / 70 hp / @ 7000 rpm |
| Clutch: | Multiplate wet clutch (anti-hopping), mechanically controlled | Single plate, dry | Dry single plate, with diaphragm spring |
| Transmission: | Constant-Mesh 6 speed | 4 Speed | 5 Speed |
| Final Drive: | O-ring chain | Shaft | Shaft |
| Frame: | Steel bridge frame in monocoque design, load-bearing engine | Pressed steel duplex frame | Double sown tubs, dual cradle |
| Front Suspension: | 41mm telescopic forks | Cantilever spring, 9 laminae with friction shock absorber | Telescopic fork with hydraulic shock absorber. |
| Rear Suspension: | Aluminum double-sided swing arm, directly mounted, preload and rebound damping adjustable (Dynamic ESA) | Rigid | Long swinging arm with adjustable strut. |
| Rear Brakes: | Single 265mm disc,1 piston caliper, ABS | ∅200mm Drum | Simplex ∅200 mm drum |
| Front Tyre: | 110/80-19 | 3.50 x 26" balloon | 3.25 - H19 |
| Rear Tyre: | 150/70-17 | 3.50 x 26" balloon | 4.00 - H18 |
| Wet Weight: | 224 kg / 494 lbs | 149 Kg / 328 lbs | 230 kg / 506 lbs |
| Fuel Capacity: | 15 Litres / 4.0 US gal | 12 L / 3.2 US gal | 24 Litres / 6.3 US gal |