| Attribute | Yamaha WR 250 F × | Yamaha TT-R 250 × |
|---|---|---|
| General | ||
| Production from (year) | 2004 | 2005 |
| Make | Yamaha | Yamaha |
| Model | Yamaha WR 250 F | Yamaha TT-R 250 |
| Category | Enduro / offroad | Enduro / offroad |
| Engine and transmission | ||
| Engine type | Single cylinder, four-stroke | Single cylinder, four-stroke |
| Valves per cylinder | 5 | 5 |
| Fuel system | - | Carburettor |
| Displacement (cm³) | 249 | 249 |
| Power (kw) | 11.1 | - |
| Cooling system | Liquid | Air |
| Transmission type,final drive | Chain | Chain |
| Torque (Nm) | 21.6 | - |
| Bore (mm) | 77 | 73 |
| Stroke (mm) | 53.6 | 59.6 |
| Gearbox | Automatic | 6-speed |
| Fuel control | Double Overhead Cams/Twin Cam (DOHC) | Double Overhead Cams/Twin Cam (DOHC) |
| Compression | 12.5:1 | 10.2:1 |
| Chassis | ||
| Front suspension | Telescopic Fork | Telescopic fork |
| Rear suspension | Swing arm (linked typed monocross) | Single shock, link-type, w/adjustable preload |
| Front brakes | Single disc | Single disc |
| Rear brakes | Single disc | Single disc |
| Diameter (mm) | 220 | 220 |
| Front tyre | 90/90-21 | 80/100-21 |
| Rear tyre | 130/90-18 | 100/100-18 |
| Front wheel travel (mm) | 300 | 280 |
| Rear wheel travel (mm) | 315 | 280 |
| Other | ||
| Color options |
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| Dimensions | ||
| Wheelbase (mm) | 1,475 | 1,405 |
| Dry weight (kg) | 105 | - |
| Power/weight ratio | 0.1052 | - |
| Overall height (mm) | 1,303 | 1,260 |
| Overall length (mm) | 2,165 | 2,096 |
| Overall width (mm) | 827 | 836 |
| Seat height (mm) | 998 | 914 |
| Ground clearance (mm) | 382 | 305 |
| Performance | ||
| Fuel capacity (l) | - | 9.46 |