Honda XR 250R (1998) vs Yamaha XT 500 (1977) vs Yamaha XJ 550R Sega (1981) vs Yamaha GX 400 (1977) vs Honda XR 250R (2000) vs Honda VFR 800Fi (2000)
Comparison technical specifications
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| Make: | Honda | Yamaha | Yamaha | Yamaha | Honda | Honda |
| Model: | XR 250R | XT 500 | XJ 550R Sega | GX 400 | XR 250R | VFR 800Fi |
| Years: | 1998 | 1977 | 1981 | 1977 | 2000 | 2000 |
| 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. | Four stroke, parallel twin | Four stroke, single cylinder SOHC, 4 valve | Four stroke, 90°V-four cylinder, DOHC, 4 valve per cylinder |
| Capacity: | 249 cc / 15.1 cu-in | 499 cc / 30.5 cuin | 528 cc / 32.2 cu-in | 391 | 249 cc / 15.1 cu-in | 781.7 cc / 47.7 cu-in |
| Bore x Stroke: | 73 x 59.5 mm | 87 х 84 mm | 57 X 51.8 mm | 69 х 52.4 mm | 73 x 59.5 mm | 72 x 48 mm |
| Cooling System: | Air cooled | Air cooled | Air cooled | Air cooled | Air cooled | Liquid cooled |
| Compression Ratio: | 10.2:1 | 9.0 :1 | 9.5:1 | 9.2:1 | 10.2:1 | 11.6 1 |
| Induction: | PD30 Carburetion | 32mm Mikuni VM32SS carburetor | 4x 28mm Mikuni carburetors | Carburetor | PD30 Carburetion | PGM-FI electronic fuel injection |
| Starting: | Kick | Kick | Electric | 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 | 37 hp @ 8800 rpm | 30 hp / 21.9 kW @ 9000 rpm | 110 hp / 81 kW @ 10500 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 | 3.2 @ 8000 rpm | 24.5 Nm / 18 ft. lbs @ 7500 rpm | 82 Nm / 60.4 lb-ft @ 8500 rpm |
| Transmission: | 6 Speed | 5 Speed | 6 Speed | 6 Speed | 6 Speed | 6 Speed |
| Final Drive: | Chain | Chain | Chain | Chain | Chain | #530 O-ring-sealed chain |
| Front Suspension: | 41 mm Air assisted telescopic forks | Leading axle coil spring fork | Telescopic coil spring forks | Telescopic forks | 41 mm Air assisted telescopic forks | 41mm H.M.A.S. cartridge-type telescopic fork with preload adjustable damper |
| Rear Suspension: | Pro-Link, adjustable compression and rebound | Swing arm adjustable preload | Swinging arm with dual dampers adjustable for preload | Dual shocks | Pro-Link, adjustable compression and rebound | Pro arm mono arm system incorporating stepless rebound-adjustable gas-charged H.M.A.S. damper with pro-link |
| Front Brakes: | Single 240 mm disc 2 piston caliper | Single 160mm drum | 2x 267mm discs | Single disc | Single 240 mm disc 2 piston caliper | 2x 296mm discs 3 piston calipers |
| Rear Brakes: | Single 220 mm disc 1 piston caliper | Single 150mm drum | 182mm Drum | Single disc | Single 220 mm disc 1 piston caliper | Single 256mm disc 3 piston caliper |
| Front Tyre: | 80/100-21 | 3.00-21 | 3.25-19 | 3.00-18 | 80/100-21 | 120/70 ZR17 |
| Rear Tyre: | 100/100-18 | 4.00-18 | 110/ 90-16 | 3.50-18 | 100/100-18 | 180/55 ZR17 |
| Fuel Capacity: | 9 Litres / 2.4 gal | 8.8 Litres / 2.3 US gal | 15 liters / 3.9 US gal | 9 Litres / 2.4 gal | 20.8 Litres / 5.5 US gal |