Honda XR 250R (1998) vs Yamaha XT 500 (1977) vs Yamaha XJ 550R Sega (1981)
Comparison technical specifications
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| Make: | Honda | Yamaha | Yamaha |
| Model: | XR 250R | XT 500 | XJ 550R Sega |
| Years: | 1998 | 1977 | 1981 |
| Engine: | Four stroke, single cylinder SOHC, 4 valve | Four stroke, single cylinder, SOHC, 2 valve | Four stroke, transverse four cylinder. DOHC, 2 valves per cylinder. |
| Capacity: | 249 cc / 15.1 cu-in | 499 cc / 30.5 cuin | 528 cc / 32.2 cu-in |
| Bore x Stroke: | 73 x 59.5 mm | 87 х 84 mm | 57 X 51.8 mm |
| Cooling System: | Air cooled | Air cooled | Air cooled |
| Compression Ratio: | 10.2:1 | 9.0 :1 | 9.5:1 |
| Induction: | PD30 Carburetion | 32mm Mikuni VM32SS carburetor | 4x 28mm Mikuni carburetors |
| Ignition: | CDI type magnetic Ignition System | Magneto, CB/coil | Battery powered inductive |
| Starting: | Kick | Kick | Electric |
| Max Power: | 30 hp / 21.9 kW @ 9000 rpm | 32 hp / 23.5 kW @ 6500 rpm | 37 kW / 50 PS @ 9000 rpm |
| Max Torque: | 24.5 Nm / 18 ft. lbs @ 7500 rpm | 4.0 kgf-m / 39.2 Nm @ 5500 rpm | 41.9 Nm / 4,3 m-kg @ 7500 rpm |
| Transmission: | 6 Speed | 5 Speed | 6 Speed |
| Final Drive: | Chain | Chain | Chain |
| Front Suspension: | 41 mm Air assisted telescopic forks | Leading axle coil spring fork | Telescopic coil spring forks |
| Front Wheel Travel: | 280 mm / 11.0 in | 195 mm / 7.6 in | 137 mm / 5.3 in |
| Rear Suspension: | Pro-Link, adjustable compression and rebound | Swing arm adjustable preload | Swinging arm with dual dampers adjustable for preload |
| Rear Wheel Travel: | 280 mm / 11.0 in | 142 mm / 5.5 in | 80 mm / 3.7 in |
| Front Brakes: | Single 240 mm disc 2 piston caliper | Single 160mm drum | 2x 267mm discs |
| Rear Brakes: | Single 220 mm disc 1 piston caliper | Single 150mm drum | 182mm Drum |
| Front Tyre: | 80/100-21 | 3.00-21 | 3.25-19 |
| Rear Tyre: | 100/100-18 | 4.00-18 | 110/ 90-16 |
| Fuel Capacity: | 9 Litres / 2.4 gal | 8.8 Litres / 2.3 US gal | 15 liters / 3.9 US gal |