Yamaha XS 750 (1977) vs BMW R 100/7 (1978-10)
Comparison technical specifications
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| Make: | Yamaha | BMW |
| Model: | XS 750 | R 100/7 |
| Years: | 1977 | 1978-10 |
| Engine: | Four stroke, transverse three cylinder, DOHC, 2 valves per cylinder. | Four stroke, two cylinder horizontally opposed Boxer, 2 valves per cylinder |
| Capacity: | 747 cc / 45.6 cu in | 980 cc / 59.8 cu in. |
| Bore x Stroke: | 68 x 68.6 mm | 94 x 70.6 mm |
| Compression Ratio: | 8.5:1 | 9.1:1 |
| Cooling System: | Air cooled | Air cooled |
| Induction: | 3 x 34mm Mikuni carburetors | 2 x 36mm Bing V94 carburetors |
| Ignition: | Battery and coil | Battery ignition |
| Starting: | Electric | Electric |
| Max Power: | 47.7 kW / 64 hp @ 7500 rpm | 44.1 KW / 60 hp @ 7000 rpm |
| Transmission: | 5 Speed | 5 Speed |
| Final Drive: | Shaft | Shaft |
| Front Suspension: | Telescopic forks, 36 mm | Telescopic fork with hydraulic shock absorber. |
| Rear Suspension: | Dual shocks swing arm, preload adjustable | Long swinging arm with adjustable strut. |
| Front Brakes: | 2 x 267mm Discs | Single ∅260mm disc |
| Rear Brakes: | Single 267mm disc | ∅200mm Drum |
| Front Tyre: | 3.25-19 | 3.25 - H19 |
| Rear Tyre: | 4.00-18 | 4.00 - H18 |
| Wet Weight: | 249 kg / 550 lbs | 215 kg / 474 lbs |
| Fuel Capacity: | 15 Litres / 4.0 US gal | 24 L / 6.3 US gal |
| Top Speed: | 171 km/h / 106 mph | 188 km/h / 117 mph |