Honda CRF450R
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The CRF450R will surely become the king of the flyways having so many race-dominating advantages. Explosive power comes from the liquid-cooled, four-stroke, four-valve single cylinder engine, which is housed in the most advanced aluminum chassis design. This power combined with a remarkably light 102kg machine delivers a power to weight ratio that has been the sole domain of two-stroke motocrossers - until now!
Other performance features include a unique \'Unicam\' valve train providing the light weight of a compact single cam drive and the optimum combustion chamber shape for maximum power at all engine speeds and an ultra-flat and lightweight \'mini-skirt piston\'. The use of weight-saving materials such as titanium, improves the power-to-weight ratio producing a class-leading machine.
In fact the CRF450R is everything that\'s needed to deliver that instantaneous rush of big power required to compete and conquer, in the world\'s most competitive class of off-road racing.
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| Engine | Honda |
| Engine Type | Liquid-cooled 4-stroke 4-valve SOHC single |
| Engine Displacement | 449cm3 |
| Bore & Stroke | 96 x 62.1mm |
| Compression Ratio | 12 |
| Carburation | 41mm Keihin FCR flat-slide carburettor |
| Max. Power Output | 38.5kW/9,000min-1 (95/1/EC) |
| Max. Torque | 47.2Nm/7,000min-1 (95/1/EC) |
| Ignition | Computer-controlled digital capacitor discharge with electronic advance |
| Starter | Primary kick |
| Transmission | |
| Gearbox | 5-speed |
| Final Drive | #520 roller chain |
| Dimensions and Weight | |
| Length x Width x Height | 2,191 x 825 x 1,262mm |
| Wheelbase | 1,491mm |
| Seat Height | 955mm |
| Ground Clearance | 340mm |
| Fuel Capacity | 7.2litres |
| Dry Weight | 103.2kg |
| Wheels, Suspension and Brakes | |
| Wheels Front | Aluminium rim/wire spoke 21 x 1.6 |
| Wheels Rear | Aluminium rim/wire spoke 19 x 2.15 |
| Tyres Front | 80/100-21 (51M) |
| Tyres Rear | 110/90-19 (62M) |
| Suspension Front | 47mm Showa inverted leading-axle twin-chamber cartridge-type telescopic fork with 16-step adjustable compression and rebound damping; 315mm axle travel |
| Suspension Rear | Pro-Link with Showa damper, adjustable low-speed (13-step) and high-speed (3.5-turn) compression and 17-step rebound damping; 320mm axle travel |
| Brakes Front | 240mm hydraulic disc with dual-piston calliper and sintered metal pads |
| Brakes Rear | 240mm hydraulic disc with single-piston calliper and sintered metal pads |
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Powerful new four - stroke engine produces out 55 bhp at 9000 rpm and 36 lb./ ft. of torque at 7,000 rpm. Power is produced across a wide rpm band for easy-to-control operation.
The twin-spar aluminum frame and swingarm utilise Honda\'s unmatched CR aluminum frame design expertise to ensure an optimal balance of compliance, rigidity and strength.
An F1 type forged, 11.5:1 compression \'mini-skirt\' piston is 112 grams lighter than a conventional design, revving quickly while maintaining excellent cylinder sealing and high rpm power.
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Other Models
Honda CR125R - Honda CR250R - Honda CR85R - Honda CRF100F - Honda CRF230F - Honda CRF250R - Honda CRF250X - Honda CRF450R - Honda CRF450X - Honda CRF50F - Honda CBR70F
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