Yamaha FZR 250R (1990-92) vs Yamaha SR 400 (1993-97) vs Hyosung GT 250R (2012) vs Ducati 125 TV Testone (1962-68) vs Gilera RC 600 Enduro (1989-91)
Comparison technical specifications
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| Make: | Yamaha | Yamaha | Hyosung | Ducati | Gilera |
| Model: | FZR 250R | SR 400 | GT 250R | 125 TV Testone | RC 600 Enduro |
| Years: | 1990-92 | 1993-97 | 2012 | 1962-68 | 1989-91 |
| Engine: | Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder. | Four stroke, single cylinder, SOHC, 2 valves per cylinder. | Four stroke, 75° V twin, DOHC, 4 per valve cylinder. | Four stroke, single-cylinder, OHC, bevel gear driven | Four stroke, single cylinder, DOHC, 4 valves |
| Capacity: | 249 cc / 15.2 cu-in | 399 cc / 24.3 cu-in | 248 cc / 15.2 cu-in | 124.4 cc / 7.6 cu in | 558 cc / 34.0 cu-in |
| Bore x Stroke: | 48 х 34.5 mm | 87 х 67.2 mm | 57 x 48.8 mm | 55.2 x 52 mm | 98 x 74 mm |
| Cooling System: | Liquid cooled | Air cooled | Oil / Air | Air cooled | Liquid cooled |
| Compression Ratio: | 12.0:1 | 8.5:1 | 11.0:1 | 7.0:1 | 9.5:1 |
| Induction: | MIKUNI BDS2600 carburetor | BSR33 carburetor | 2x 26mm Mikuni carburetors | Dell'Orto UB18BS or ME18BS carburetor | 2x Teikei E27PV2A carburetor |
| Ignition: | CDI | CDI | Digital CDI | Battery and coil, 6V 40W generator | Electronic |
| Starting: | Electric | Kick | Electric | Kick | Kick |
| Max Power: | 45 hp / 32.8 kW @ 14500 rpm | 27 hp / 17.1 KW @ 7000 rpm | 30 hp / 22.4 kW @ 10500 rpm | 4.8 kW / 6.5 hp @ 6500 rpm | 49.5 hp / 36.5 kW @ 7250 rpm |
| Final Drive: | Chain | Chain | Chain | Chain | Chain |
| Front Suspension: | 38mm Telescopic forks | Telescopic fork | 41mm Oil upside down forks | Hydraulically damped telescopic forks, Marzocci | 41mm Morzocchi forks |
| Rear Suspension: | Monoshock preload adjustable. | Dual shocks | Swinging arm | Swingarm, dual shocks, 3-way adjustable | Boge shocks variable preload |
| Front Brakes: | 2x 285mm discs 4 piston calipers | Single disc | Single 300mm disc | Drum, 123 mm | Single 260mm disc |
| Rear Brakes: | Single 210mm disc 2 piston caliper | Drum | Single 230mm disc | Drum, 123 mm | Single 220mm disc |
| Front Tyre: | 100/80--17 | 3.50-19 | 110/70 -17 | 2.75 - 16 | 90/90 -21 |
| Rear Tyre: | 130/70-17 | 4.00-16 | 150/70 -17 | 2.75 - 16 | 140/80 -17 |