Yamaha TX 750 (1973) vs Suzuki RH 250X (1986) vs Yamaha TT 250 (1980)
Comparison technical specifications
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| Make: | Yamaha | Suzuki | Yamaha |
| Model: | TX 750 | RH 250X | TT 250 |
| Years: | 1973 | 1986 | 1980 |
| Engine: | Four stroke, parallel twin cylinders, SOHC 2 valve per cylinder | Two stroke, single cylinder | Four stroke, single cylinder, |
| Capacity: | 743 cc / 45.3 cu-in | 249 cc / 15.2 cu in | 249 cc / 15.2 cu-in |
| Bore x Stroke: | 80 x 74 mm | 70 x 64.8 mm | 75 x 56.5mm |
| Cooling System: | Air cooled | Liquid cooled | Air cooled |
| Induction: | Carburetor | Mikuni VM 32 SS carburetor | 30mm Mikuni slide carburetor |
| Ignition: | Suzuki PEI | Flywheel-magneto CDI | |
| Starting: | Electric & Kick | Kick | Kick |
| Max Power: | 63 hp / 45.9 kW @ 6100 rpm | 23.1 kW / 31 hp @ 7500 rpm | 22 hp / 16.1 kW @ 8000 rpm |
| Max Torque: | 7 kgf-m / 50.6 lb-ft @ 6000 rpm | 31.2 Nm / 3.18 kgf-m / 23.0 lb-ft @ 6500 rpm | 2.0 kgf-m / 14.4 lb-ft @ 6500 rpm |
| Transmission: | 5 Speed | 6 Speed | 5 Speed |
| Final Drive: | Chain | Chain | Chain |
| Front Suspension: | Telescopic forks | Telescopic forks, oil dampened | 36mm stanchion tube diameter |
| Rear Suspension: | Dual shock | Full floater mono shock, preload adjustable | Adjustable preload monoshock |
| Front Brakes: | Single or dual 300mm disc 2 piston calipers (In Japan, the United States, and other markets the bike had a single disc, although the lugs needed to mount a second disc were in place. ) | Single disc | Drum |
| Rear Brakes: | 180mm Drum | Drum | Drum |
| Front Tyre: | 3.50-19 | 3.00-21 | 300-21 |
| Rear Tyre: | 4.00-18 | 130/80-17 | 510-17 |
| Fuel Capacity: | 14 Litres / 3.7 US gal | 12 Litres / 3.2 US gal / 2.6 Imp gal | 7.5 liters / 2.0 US gal |