Yamaha GX 750 Sport (1978-79) vs BMW K 1300 S Motorsport Special Edition (2015)
Comparison technical specifications
Add bike |
Remove bike |
Remove bike |
| Make: | Yamaha | BMW |
| Model: | GX 750 Sport | K 1300 S Motorsport Special Edition |
| Years: | 1978-79 | 2015 |
| Engine: | Four stroke, transverse three cylinder. DOHC | Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder |
| Capacity: | 747 cc / 45.5 cu-in | 1298 cc / 79.2 cu in |
| Bore x Stroke: | 68 х 68.6 mm | 80 x 64.3 mm / 3.15 x 2.53 in |
| Cooling System: | Air cooled | Liquid cooled |
| Compression Ratio: | 8.5:1 | 13.0:1 |
| Induction: | Mikuni Thorex SU type BS34 | Electronic fuel injection, Digital Motor Electronics with integrated knock control (BMS-K) |
| Ignition: | Battery point | Digital CDI |
| Starting: | Electric | Electric |
| Max Power: | 67 hp / 50 kW @ 7000 rpm | 127 kW / 173 hp @ 9250 rpm |
| Max Torque: | 6.3 kgf-m @ 6500 rpm | 140 Nm / 14.3 kgf-m / 103 lb-ft @ 8250 rpm |
| Transmission: | 5 Speed | 6 Speed |
| Final Drive: | Shaft | Shaft |
| Front Suspension: | Telescopic forks | BMW Motorrad Duolever, central spring strut, Paralever; central spring strut with lever system |
| Rear Suspension: | Dual shocks | Cast aluminium single swing arm with BMW Motorrad, spring pre-tension with infinite hydraulic adjustment |
| Front Brakes: | Single disc | 2x 320mm discs, 4 piston calipers |
| Rear Brakes: | Single disc | Single 265mm disc, 2 piston caliper |
| Front Tyre: | F3.25-19 | 120/70 ZR17 |
| Rear Tyre: | 4.00-18 | 190/55 ZR17 |
| Dry Weight: | 229 kg / 502.6 lbs | 228 kg / 503 lbs |
| Fuel Capacity: | 17 Litres / 4.5 US gal | 19 Litres / 5.0 US gal |