NEW 2011 HONDA CRF450R MODEL Specifications
For 2011 Honda introduces a new and improved CRF450R to it's successful motocross range which will also comply with the new FIM noise regulations. Further improvements have also been made in mid range power delivery with a new ECU mapping and narrower throttle body.
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| General |
| Model |
|
CRF450R |
| Mold Type |
|
ED-type |
| Engine |
| Type |
|
Liquid-cooled
4-stroke 4-valve OHC single |
| Displacement |
|
449.7cm³ |
| Bore x Stroke |
|
96 x 62.1mm |
| Compression Ratio |
|
12 : 1 |
| Max. Power Output |
|
40.9kW / 8,500min-1 (95/1/EC) |
| Max. Torque |
|
50.5Nm / 7,000min-1 (95/1/EC) |
| Fuel System |
| Carburation |
|
PGM-FI electronic fuel injection |
| Fuel Tank Capacity |
|
5.7 litres |
| Electrical System |
| Ignition System |
|
Full transistor with digital ignition |
| Starter |
|
Primary kick |
| Drivetrain |
| Clutch |
|
Wet, multiplate |
| Transmission |
|
5-speed constant mesh |
| Primary Reduction |
|
2.739 (63/23) |
| Gear Ratios |
1 |
1.800 (27/15) |
| |
2 |
1.470 (25/17) |
| |
3 |
1.235 (21/17) |
| |
4 |
1.050 (21/20) |
| |
5 |
0.909 (20/22) |
| Final Reduction |
|
3.692 (48/13) |
| Final Drive |
|
#520 roller chain |
| Frame |
| Type |
|
Aluminium twin-spar |
| Chassis |
| Dimensions |
|
(LxWxH) 2,191 x 827 x 1,273mm |
| Wheelbase |
|
1,491mm |
| Caster Angle |
|
26° 53' |
| Trail |
|
114.5mm |
| Seat Height |
|
954mm |
| Ground Clearance |
|
332mm |
| Kerb Weight |
|
107.6kg (F: 53.2kg; R: 54.4kg) |
|
|
| Suspension |
| Type |
Front |
48mm inverted KYB leading-axle twinchamber cartridge-type telescopic fork with 18-step adjustable compression and 18- step rebound damping; 273mm axle travel |
| |
Rear |
Pro-Link with KYB damper, adjustable lowspeed (18-step) and high-speed (1.5-turn) compression and 20-step rebound damping; 320mm axle travel |
| Wheels |
| Type |
Front |
Aluminium rim/wire spoke |
| |
Rear |
Aluminium rim/wire spoke |
| Rim Size |
Front |
21 x 1.60 |
| |
Rear |
19 x 2.15 |
| Tyre Size |
Front |
80/100 21 (51M) |
| |
Rear |
110/90 19 (62M) |
| Brakes |
| Type |
Front |
240mm x 3mm hydraulic disc with dualpiston caliper and sintered metal pads |
| |
Rear |
240mm x 4mm hydraulic disc with singlepiston caliper and sintered metal pads |
|
All specifications are provisional and subject to change without notice.
|
|
 A - New settings and
a Refined Pro-Link Ratio
New settings and a refined Pro-Link ratio for improved suspension action and enhanced machine balance
B - Battery-less FI system
Battery-less FI system with new tapered injector delivers excellent bottom to mid-range drivability, smooth power delivery in high altitudes and enhanced fuel efficiency
C - New, narrower throttle body
New, narrower throttle body enhances bottom to mid-range power and torque feel, and improves throttle control.
D - Powerful Unicam Engine
Powerful but lightweight Unicam engine features revised ECU settings to improve starting and on/off throttle control.
E - Low mass centralisation
Low mass centralisation gives a highly controlled ride feel and makes jumping and manoeuvring in the air easier.
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