Specifications - Honda CRF450R 2009 Owner's Manual & Competition Handbook

Item English
Dimension
Overall length
86.3 in
Overall width
32.6 in
Overall height 50.3 in
Wheelbase
58.8 in
Seat height
37.7 in
Footpeg height 16.9 in
Ground clearance
13.2 in
Frame
Type
Telescopic fork,
F. suspension travel 10.7 in (273 mm)
stroke 12.2 in (310 mm)
R. suspension
travel 12.6 in (320 mm)
80/100 – 21 51M
Tire size, front
DUNLOP
120/80 – 19 63M
Tire size, rear
DUNLOP
Tire type bias-ply, tube
Tire pressure, front (cold) 15 psi (100 kPa, 1.0 kgf/cm
Tire pressure, rear (cold) 15 psi (100 kPa, 1.0 kgf/cm
Single disc brake
F. brake, swept area
51.8 in
Single disc brake
R. brake, swept area
60.6 in
unleaded gasoline, pump
octane number of 91 or
Fuel recommendation
higher
Fuel tank capacity 1.5 US gal
Caster angle
Trail length 4.6 in
Fork oil capacity
11.8 US oz
(except fork damper)
Metric Item
Engine
Type
2,193 mm
827 mm
Cylinder arrangement
1,278 mm
1,493 mm Bore and stroke
957 mm
Displacement
428 mm
Compression ratio
336 mm
Valve clearance
(cold)
Twin tube
Engine oil capacity
after draining
after draining and
Pro-link,
oil filter change
after disassembly
Transmission oil
D742FA
capacity
after draining
D756
after disassembly
Throttle body
2
)
Identification number
2
)
First idle speed
Cooling system
2 2
(334.5 cm )
Cooling capacity
after draining
2 2
(391.1 cm )
after disassembly
5.7R
27˚3'
115.6 mm
3
350 cm
English Metric
Drive train
Liquid cooled, 4-stroke Clutch type
Single 6˚30' inclined from
Transmission
vertical
Primary reduction
96.0 x 62.1
Gear ratio I
3.78 x 2.44 in
mm
Gear ratio II
3
27.43 cu-in 449.7 cm
Gear ratio III
12.0 : 1
Gear ratio IV
0.006 ± 0.001 in
Intake:
(0.16 ± 0.03 mm)
Gear ratio V
0.011 ± 0.001 in
Exhaust:
Final reduction
(0.28 ± 0.03 mm)
Gear shift pattern
0.61 US qt 0.58R
Electrical
Ignition
0.66 US qt 0.62R
Starting system
0.81 US qt 0.77R
Spark plug :
0.62 US qt 0.59R
0.71 US qt 0.67R
Spark plug gap
GQD0A
1,750 ± 100 rpm
1.10 US qt 1.04R
1.12 US qt 1.06R

Specifications

Item English
Wet, multi-plate type
5-speed, constant mesh
2.739
1.800
1.470
1.235
1.050
0.909
3.692
Left foot-operated return
system 1-N-2-3-4-5
ECM
Kickstarter
NGK
Standard
SILMAR9A-9S
For extended high
NGK
speed riding SILMAR10A-9S
0.031 – 0.035 in
(0.8 – 0.9 mm)
Technical Information
Metric
145