| General |
| Comments | Model id: CRF450R | - |
| Colours | Red | Orange/white/grey |
| Dimensions |
| Length (mm) | 2,191 mm | - |
| Length (in.) | 86.3 inches | - |
| Height (mm) | 1,271 mm | - |
| Height (in.) | 50.0 inches | - |
| Ground Clearance (mm) | 330 mm | 343 mm |
| Ground Clearance (in.) | 13.0 inches | 13.5 inches |
| Seat Height (mm) | 953 mm | 958 mm |
| Wheelbase (in.) | 58.7 inches | 58.9 inches |
| Wheelbase (mm) | 1,492 mm | 1495 mm |
| Width (in.) | 32.6 inches | - |
| Width (mm) | 827 mm | - |
| Seat Height (in.) | 37.5 inches | 37.7 inches |
| Seat Height | 953 mm / 37.5 in. | 958 mm / 37.7 in. |
| Wheelbase | 1,492 mm / 58.7 in. | 1495 mm / 58.9 in. |
| Height | 1,271 mm / 50.0 in. | - |
| Length | 2,191 mm / 86.3 in. | - |
| Width | 827 mm / 32.6 in. | - |
| Weights & Capacities |
| Dry Weight (kg) | - | 101 |
| Oil Capacity (Quarts) | 0.12 quarts | - |
| Oil Capacity (l) | 1.80 litres | - |
| Dry Weight (lbs.) | - | 222.7 pounds |
| Fuel Capacity (gal.) | 1.70 gallons | 1.90 US gallons |
| Wet Weight (kg) | 110.2 kg | - |
| Wet Weight (lbs.) | 243.0 pounds | - |
| Fuel Capacity (l) | 6.43 litres | 7.20 litres |
| Dry Weight | - | 101 kg / 222.7 lbs |
| Fuel Capacity | 6.43 litres / 1.70 gallons | 7.20 litres / 1.90 US gallons |
| Wet Weight | 110.2 kg / 243.0 lbs | - |
| Performance |
| Top Speed (mph.) | 105.6 mph | - |
| Top Speed (km/h) | 170.0 km/h | - |
| Top Speed | 170.0 km/h / 105.6 mph | - |
| Max Torque | 48.00 Nm (4.9 kgf-m or 35.4 ft.lbs) @ 7000 Revolutions | - |
| Engine |
| Displacement (cc) | - | 249.9 cc |
| Stroke | - | 4-stroke |
| Bore x Stroke (in,) | 3.8 x 2.4 inches | 3.2 x 1.9 inches |
| Bore x Stroke (mm) | 96.0 x 62.1 mm | 81.0 x 48.5 mm |
| Engine Type | Single cylinder, four-stroke | Single cylinder, four-stroke |
| Fuel Control | Single Overhead Cams (SOHC) | - |
| Displacement (ci) | - | 15.25 cubic inches |
| Fuel System | Injection. PGM-Fi | - |
| Compression Ratio | 13.5:1 | - |
| Exhaust | Twin-muffler | - |
| Ignition | Fully transistorized with electronic advance | Keihin EMS |
| Starter | Kick | Electric |
| Drivetrain |
| Clutch | Multi plate wet clutch | Wet multi-disc clutch, Brembo hydraulics |
| Final Drive | Chain | Chain (final drive) |
| Gearbox | 5-speed | 5-speed |
| Primary Drive | Constant mesh | X-Ring 5/8 x 1/4´ chain. |
| Chassis |
| Trail (in.) | 4.6 inches | - |
| Trail (mm) | 116 mm | - |
| Wheel Travel - Front (in.) | 12.0 inches | 12.2 inches |
| Wheel Travel - Front (mm) | 305 mm | 310 mm |
| Wheel Travel - Rear (in.) | 12.3 inches | 11.8 inches |
| Wheel Travel - Rear (mm) | 312 mm | 300 mm |
| Frame Type | Aluminium twin tube | Central double-cradle-type 25CrMo4 steel |
| Suspension - Front | 49mm inverted Showa fork with rebound and compression damping adjustability. | WP XACT-USD, Ø 48 mm |
| Suspension - Rear | Pro-Link® Showa single shock with adjustable spring preload, rebound and compression damping adjustability. | WP XACT Monoshock with linkage |
| Rake | 27.2° | 26.5° |
| Trail | 116 mm / 4.6 in. | - |
| Wheel Travel - Front | 305 mm / 12.0 in. | 310 mm / 12.2 in. |
| Wheel Travel - Rear | 312 mm / 12.3 in. | 300 mm / 11.8 in. |
| Wheels & Brakes |
| Brakes - Rear Diameter (mm) | 240 mm | - |
| Brakes - Front Diameter (mm) | 260 mm | - |
| Brakes - Rear Diameter (in.) | 9.4 inches | - |
| Brakes - Front Diameter (in.) | 10.2 inches | - |
| Brakes - Front | Single disc. Hydraulic. Two-piston calipers. | Single disc |
| Brakes - Rear | Single disc. Hydraulic. Single-piston caliper. | Single disc |
| Rims | Dunlop tyres | Wire spoked. |
| Tyres - Front | 80/100-21 | 80/100-21 |
| Tyres - Rear | 120/80-19 | - |