Suzuki GSX 650F (2010) vs Suzuki GSX-R 750 (2018) vs Suzuki GSF 400 (1989-) vs Yamaha FZR 250R (1993-95)
Comparison technical specifications
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| Make: | Suzuki | Suzuki | Suzuki | Yamaha |
| Model: | GSX 650F | GSX-R 750 | GSF 400 | FZR 250R |
| Years: | 2010 | 2018 | 1989- | 1993-95 |
| Engine: | Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder | Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder. | Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder. | Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder. |
| Capacity: | 656 cc / 40.0 cu in | 749 c / 45.7 cub. in. | 398 cc / 24.3 cu in | 249 cc / 15.2 cu-in |
| Bore x Stroke: | 65.5 x 48.7. mm | 70 x 48.7 mm | 56 х 40.4 mm | 48 х 34.5 mm |
| Compression Ratio: | 11.5:1 | 12.5:1 | 11.8:1 | 12.0:1 |
| Cooling System: | Liquid cooled | Liquid. High capacity large trapezoidal-shaped radiator which includes compact cooling fan assembly designed for improved air flow. | Liquid cooled | Liquid cooled |
| Induction: | Fuel injection, 36 mm throttle body | New 32 bit ECM features 1024 kilobytes of ROM for maximum engine performance working in conjunction with the new S-DMS engine management system | 4 x Mikuni BST32 carburetors | MIKUNI BDS2600 carburetor |
| Ignition: | Transistorized | Digital DC-CDI | Transistorized | CDI |
| Starting: | Electric | Electric | Electric | Electric |
| Max Power: | 62.3 kW / 83.5 hp @ 10500rpm | 110.3 kW / 148 hp @ 12800 rpm | 44 kW / 59 hp @ 12000 rpm (at rear tyre 36.3kW / 48.7 hp @ 10750 rpm ) | 45 hp / 32.8 kW @ 14500 rpm |
| Max Torque: | 61.5 Nm / 6.27 kgf-m / 45.35 lb-ft @ 10500rpm | 86.3 Nm / 8.8 kgf-m / 64 ft-lb @ 11200 rpm | 38 Nm / 3.9 kgf-m / 28.2 lb-ft @ 10500 rpm | 25 Nm / 2 kgf-m @ 11500 rpm |
| Transmission: | 6 Speed | 6 Speed, constant mesh | 6 Speed | 6 Speed |
| Final Drive: | Chain | Chain, RK525ROZ5Y, 116 links | Chain | Chain |
| Front Suspension: | 41mm Forks, coil spring, oil damped, adjustable spring preload | Showa inverted 41 mm cartridge front forks fully adjustable for high and low speed compression, spring preload, and rebound damping | 41mm Kayaba, telescopic, coil spring, oil-damped | 38mm Telescopic forks |
| Rear Suspension: | Swingarm, link type, coil springs, oil damped, adjustable preload and rebound | Showa 41mm aluminum alloy rear shock with a 16mm rod diameter are fully adjustable for high and low speed compression, spring preload and rebound damping | Preload adjustable Kayaba monoshock | Monoshock preload adjustable. |
| Front Brakes: | 2 x 310 mm Discs, 4-piston Tokico calipers | 2 x 310 mm Discs, radial-mount opposed-four-piston Brembo 4 piston monoblock calipers | Single 310mm disc, 2 piston caliper | 2x 285mm discs 4 piston calipers |
| Rear Brakes: | Single 240 mm disc, 1 piston caliper | Single 220 mm disc, Nissin single piston caliper | Single 260mm disc, 2 piston caliper | Single 210mm disc 2 piston caliper |
| Front Tyre: | 120/70 ZR17 | 120/70 ZR17 | 110/70-17 | 100/80--17 |
| Rear Tyre: | 160/60 ZR17 | 180/55 ZR17 | 150/70-17 | 130/70-17 |
| Wheelbase: | 1470 mm / 57.9 in | 1390 mm / 54.7 in. | 1430 mm / 56.3 in | 1375 mm / 54.1 in |
| Fuel Capacity: | 19 Litres / 5.0 US gal / 4.2 Imp gal | 17 Litres / 4.5 US gal / 3.7 Imp gal | 16 Litres / 4.2 US gal / 3.5 Imp gal | 14 Litres / 3.7 US gal |