| General |
| Comments | - | Model ID: CRF250R |
| Colours | Team Yamaha Blue | Red |
| Warranty | 30 Day Limited Factory Warranty | - |
| Dimensions |
| Ground Clearance (mm) | 361 mm | 333 mm |
| Ground Clearance (in.) | 14.2 inches | 13.1 inches |
| Seat Height | 975 mm / 38.4 in. | 960 mm / 37.8 in. |
| Wheelbase | 1481 mm / 58.3 in. | 1477 mm / 58.1 in. |
| Height | 1290 mm / 50.8 in. | 1265 mm / 49.8 in. |
| Length | 2184 mm / 86.0 in. | 2177 mm / 85.7 in. |
| Width | 826 mm / 32.5 in. | 827 mm / 32.6 in. |
| Weights & Capacities |
| Oil Capacity (Quarts) | 0.85 US quarts | 1.48 US quarts |
| Oil Capacity (l) | 0.80 litres | 1.40 litres |
| Fuel Capacity | 8.00 litres / 2.11 US gallons | 6.30 litres / 1.66 US gallons |
| Coolant Capacity | - | 1.00 litres (0.26 US gallons) |
| Wet Weight | 103.0 kg / 227.0 lbs | 104.0 kg / 229.3 lbs |
| Performance |
| Max Torque | - | 20.0 Nm (2.0 kgf-m or 14.8 ft.lbs) |
| Engine |
| Fuel Control | - | Double Overhead Cams/Twin Cam (DOHC) |
| Displacement (ci) | 15.19 cubic inches | 15.22 cubic inches |
| Bore x Stroke (in,) | 2.6 x 2.8 inches | 3.1 x 2.0 inches |
| Engine Type | Single cylinder, two-stroke | Single cylinder, four-stroke |
| Bore x Stroke (mm) | 66.4 x 72.0 mm | 79.0 x 50.9 mm |
| Displacement (cc) | 249.0 cc | 249.4 cc |
| Engine Detail | Reed-valve inducted | 33mm intake valve, titanium; 26mm exhaust, titanium |
| Fuel System | Carburettor. Hitachi Astemo® Keihin PWK38S | - |
| Compression Ratio | 10.6:1 | 13.9:1 |
| Engine Lubrication | Premix | - |
| Idle Speed | - | 2000 +/- 100 RPM |
| Ignition | CDI | Full transistor |
| Spark Plug | - | NGK R0451B-8 |
| Starter | Electric | Electric |
| Valve System | - | 4 |
| Drivetrain |
| Chain Size | - | 520 |
| Clutch | - | Multi plate wet clutch |
| Final Drive | Chain (final drive) | Chain (final drive) |
| Gearbox | 5-speed | 5-speed |
| Number of Chain Links | - | 116 |
| Primary Drive | Constant-mesh | #520 Chain; 13T/51T |
| Sprocket | - | 13/50 (front/rear) |
| Chassis |
| Fork Tube Size (in.) | - | 1.9 inches |
| Fork Tube Size (mm) | - | 49 mm |
| Frame Type | Semi-double cradle, aluminium | Aluminium twin tube |
| Suspension - Front | KYB® Speed-Sensitive System inverted fork; fully adjustable | 49mm leading-axle inverted Showa® SPG coil-spring fork with rebound- and compression-damping adjustability |
| Suspension - Rear | KYB® single shock; fully adjustable | Pro-Link Showa single shock with spring preload, rebound- and compression-damping adjustability |
| Rake | 27.7° | 27.3° |
| Trail | 122 mm / 4.8 in. | 117 mm / 4.6 in. |
| Wheel Travel - Front | 300 mm / 11.8 in. | 310 mm / 12.2 in. |
| Wheel Travel - Rear | 315 mm / 12.4 in. | 312 mm / 12.3 in. |
| Wheels & Brakes |
| Brakes - Front | Single disc | Single disc. Two-piston calipers. |
| Brakes - Rear | Single disc | Single disc |
| Brake Fluid Type | - | DOT 4 |
| Rims | Dunlop® Geomax MX33 tyres | Aluminium spoke wheels. Pirelli Scorpion MX32 tires. |
| Tyres - Front | 80/100-21 | 80/100-21 |