BMW G 650GS (2013) vs Suzuki GS 400S (1984-86) vs Yamaha FZR 600 (1992) vs Yamaha WR 125X (2013-14)
Comparison technical specifications
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| Make: | BMW | Suzuki | Yamaha | Yamaha |
| Model: | G 650GS | GS 400S | FZR 600 | WR 125X |
| Years: | 2013 | 1984-86 | 1992 | 2013-14 |
| Engine: | Four stroke, single cylinder, DOHC, 4 valves per cylinder | Four stroke, parallel twin cylinder, DOHC, 4 valves per cylinder. | Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder. | Four stroke, forward inclined single cylinder, DOHC, 4 valve |
| Capacity: | 652 cc / 39.8 cub. in. | 399 cc / 24.3 cu in | 599 cc / 36.6 cub in | 124.7 |
| Bore x Stroke: | 100 x 83 mm | 67 x 56.6 mm | 59 x 54.8 mm | 52 x 58.6 mm |
| Compression Ratio: | 11.5:1 | 10.0:1 | 12.0:1 | 11.2:1 |
| Induction: | Fuel induction | MBwni BS34SS | 4 x 38mm Mikuni BDST32 | Fuel injection |
| Ignition: | Capacitor Discharge Ignition system | Transistorized | Transistor controlled digital | TCI |
| Starting: | Electric | Electric | Electric | Electric |
| Max Power: | 37 kW / 48 hp @ 6500 rpm | 29 kW / 39 hp @ 9500 rpm | 66.3 kW / 91 hp @ 10500 rpm | 10.9 kW / 15 hp @ 9000 rpm |
| Max Torque: | 60 Nm / 6.1 kgf-m / 44.25 lb-ft. @ 5200 rpm | 31.4 Nm / 3.2 kgf-m / 23.2 lb-ft @ 3000 rpm | 65.7 Nm / 6.7 kgf-m / 48.4 lb-ft @ 8500 rpm | 12.2 Nm / 1.24 kgf-m @ 6000 rpm |
| Transmission: | 5 Speed | 6 Speed constant mesh | 6 speed | 5 Speed |
| Final Drive: | Chain | s530 chain | O-ring chain, 530 size, 106 links | Chain |
| Front Suspension: | ∅41mm telescopic fork with stabilizer bridge | Telescopic, coil spring, oil damped | 41mm Telescopic fork preload adjustable, Coil spring, oil damper | Telescopic fork |
| Rear Suspension: | Spring setting and rebound stage damping continuously adjustable. | Dual dampers, coil spring, 5-way adjustable | Rising-rate Monoshock preload and rebound adjustable, Gas, coil spring, oil damper | Swinging arm link suspension |
| Front Brakes: | Single ∅300mm disc, 2 piston caliper | Single disc | 2 x 298mm discs, 2 piston calipers | Single 298mm disc |
| Rear Brakes: | Single ∅240mm disc, 1 piston caliper | Drum | Single 214mm disc, 1 piston caliper | Single 220mm disc |
| Front Tyre: | 100/90-19 | 3.00S184PR | 110/70-17 | 110/70-17 |
| Rear Tyre: | 130/80-17 | 3.50S184PR | 130/70-17 | 140/70-17 |
| Wheelbase: | 1484 mm / 58.4 in. | 1420mm / 55.9 in | 1425 mm / 56.1 in | 1430 mm / 56.3 in |
| Fuel Capacity: | 17.3 Litres / 4.6 US gal. | 16 Litres / 4.8 US gal | 18 Litres / 4.8 gal | 8.5 Litres / 2..2 US gal |