| General |
| Comments | Model id: CRF450R | - |
| Colours | Red | White/yellow/wblue |
| Dimensions |
| Ground Clearance (in.) | 13.2 inches | 14.6 inches |
| Ground Clearance (mm) | 335 mm | 370 mm |
| Seat Height | 965 mm / 38.0 in. | 940 mm / 37.0 in. |
| Wheelbase | 1481 mm / 58.3 in. | 1485 mm / 58.5 in. |
| Height | 1271 mm / 50.0 in. | - |
| Length | 2191 mm / 86.3 in. | - |
| Width | 827 mm / 32.6 in. | - |
| Weights & Capacities |
| Oil Capacity (l) | 1.80 litres | - |
| Oil Capacity (Quarts) | 1.9 US quarts | - |
| Dry Weight | - | 101 kg / 222.7 lbs |
| Fuel Capacity | 6.43 litres / 1.70 US gallons | 7.00 litres / 1.85 US gallons |
| Wet Weight | 110.7 kg / 244.0 lbs | - |
| Performance |
| Top Speed | 170.0 km/h / 105.6 mph | - |
| Max Torque | 48.0 Nm (4.9 kgf-m or 35.4 ft.lbs) @ 7000 Revolutions" | - |
| Power-to-Weight Ratio | - | 0.6238 HP/kg |
| Engine |
| Displacement (cc) | 449.7 cc | 449.9 cc |
| Displacement (ci) | 27.44 cubic inches | 27.45 cubic inches |
| Engine Type | Single cylinder, four-stroke | Single cylinder, four-stroke |
| Fuel Control | Single Overhead Cams (SOHC) | Single Overhead Cams (SOHC) |
| Bore x Stroke (in,) | 3.8 x 2.4 inches | 3.7 x 2.5 inches |
| Bore x Stroke (mm) | 96.0 x 62.1 mm | 95.0 x 63.4 mm |
| Engine Detail | 38mm intake valve, 31mm exhaust | - |
| Fuel System | Injection. Programmed Fuel Injection (PGM-FI), 46mm downdraft throttle body Read | Carburettor. 44mm Keihin |
| Compression Ratio | 13.5:1 | - |
| Ignition | DC-CDI | Keihin EMS |
| Starter | Kick | Electric |
| Valve System | 4 | - |
| Drivetrain |
| Clutch | Multi plate wet | Wet, DDS multi-disc clutch, Brembo hydraulics |
| Final Drive | Chain (final drive) | Chain (final drive) |
| Gearbox | 5-speed | 5-speed |
| Primary Drive | #520 Chain; 13T/49T | 5/8 x 1/4´ chain |
| Chassis |
| 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° | 26.1° |
| Trail | 114 mm / 4.5 in. | - |
| Wheel Travel - Front | 310 mm / 12.2 in. | 300 mm / 11.8 in. |
| Wheel Travel - Rear | 315 mm / 12.4 in. | 300 mm / 11.8 in. |
| Wheels & Brakes |
| Brakes - Front | Single disc. Hydraulic. Two-piston calipers. | Single disc. Brembo twin-piston floating calliper |
| Brakes - Rear | Single disc. Hydraulic. Single-piston caliper. | Single disc. Brembo single-piston floating calliper |
| Rims | Dunlop MX3S tires | Alloy rims by D.I.D. DUNLOP MX33 tyres. |
| Tyres - Front | 80/100-21 | 90/90-21 |