| General |
| Comments | - | Model id: CRF450R. |
| Colours | White/yellow/wblue | Red |
| Dimensions |
| Ground Clearance (mm) | 370 mm | 336 mm |
| Ground Clearance (in.) | 14.6 inches | 13.2 inches |
| Seat Height | 940 mm / 37.0 in. | 965 mm / 38.0 in. |
| Wheelbase | 1485 mm / 58.5 in. | 1481 mm / 58.3 in. |
| Height | - | 1267 mm / 49.9 in. |
| Length | - | 2182 mm / 85.9 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 | 105.8 kg / 233.2 lbs |
| Fuel Capacity | 7.00 litres / 1.85 US gallons | 6.30 litres / 1.66 US gallons |
| Wet Weight | - | 111.1 kg / 245.0 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 rpm |
| Power-to-Weight Ratio | 0.6238 HP/kg | 0.5007 HP/kg |
| Engine |
| Bore x Stroke (mm) | 95.0 x 63.4 mm | 96.0 x 62.1 mm |
| Displacement (cc) | 449.9 cc | 449.7 cc |
| Displacement (ci) | 27.45 cubic inches | 27.44 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,) | 3.7 x 2.5 inches | 3.8 x 2.4 inches |
| Engine Detail | - | 38mm intake valve, 31mm exhaust |
| Fuel System | Carburettor. 44mm Keihin | Injection. Programmed Fuel Injection (PGM-FI), 46mm downdraft throttle body Read |
| Compression Ratio | - | 13.5:1 |
| Ignition | Keihin EMS | Digital CDI |
| Starter | Electric | Electric |
| Valve System | - | 4 |
| Drivetrain |
| Clutch | Wet, DDS multi-disc clutch, Brembo hydraulics | Multi plate wet |
| Final Drive | Chain (final drive) | Chain (final drive) |
| Gearbox | 5-speed | 5-speed |
| Primary Drive | 5/8 x 1/4´ chain | #520 Chain; 13T/49T |
| Chassis |
| Frame Type | Central double-cradle-type 25CrMo4 steel | Aluminium twin tube |
| Suspension - Front | WP XACT-USD, Ø 48 mm | 49mm inverted Showa fork with 13-position rebound and 15-position compression-damping adjustabilit |
| Suspension - Rear | WP XACT Monoshock with linkage | Pro-Link Showa single shock with adjustable spring preload, 11-position rebound and six-position high- and low-speed compression-damping adjustability |
| Rake | 26.1° | 27.1° |
| Trail | - | 114 mm / 4.5 in. |
| Wheel Travel - Front | 300 mm / 11.8 in. | 310 mm / 12.2 in. |
| Wheel Travel - Rear | 300 mm / 11.8 in. | 315 mm / 12.4 in. |
| Wheels & Brakes |
| Brakes - Front | Single disc. Brembo twin-piston floating calliper | Single disc. Hydraulic. Two-piston calipers. |
| Brakes - Rear | Single disc. Brembo single-piston floating calliper | Single disc. Hydraulic. Single-piston caliper. |
| Rims | Alloy rims by D.I.D. DUNLOP MX33 tyres. | Dunlop MX33 tires |
| Tyres - Front | 90/90-21 | 80/100-21 |