Specifications - Honda CRF450R Owner's Manual
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Also See for CRF450R:
- Owner's manual (172 pages) ,
- Owner's manual & competition handbook (5 pages) ,
- Owner's manual (108 pages)
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Specifications
Item
English
Metric
Dimension
Overall length
86.3 in
2,191 mm
Overall width
32.6 in
827 mm
Overall height
50.0 in
1,271 mm
Wheelbase
58.7 in
1,492 mm
Seat height
37.5 in
953 mm
Footpeg height
16.5 in
420 mm
Ground clearance
13.0 in
330 mm
Frame
Type
Twin tube
Telescopic fork,
F. suspension
travel 10.7 in (273 mm)
stroke 12.2 in (310 mm)
33 psi
PSF air pressure
(230 kPa, 2.3 kgf/cm
Pro-link,
R. suspension
travel 12.4 in (315 mm)
80/100 – 21 51M
Tire size, front
DUNLOP
MX51FA
120/80 – 19 63M
Tire size, rear
DUNLOP
MX51
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
53.9 in
2
(347.7 cm
Single disc brake
R. brake, swept area
60.5 in
2
(390.3 cm
unleaded gasoline, pump
Fuel
octane number of 91 or higher
Fuel tank capacity
1.66 US gal
6.3 ℓ
Caster angle
27°4'
Trail length
4.6 in
116 mm
Fork oil capacity
8.3 US oz
245 cm
(except fork damper)
Item
English
Engine
Type
Liquid cooled, 4-stroke
Single 6°30' inclined
Cylinder arrangement
from vertical
Bore and stroke
3.78 x 2.44 in 96.0 x 62.1 mm
Displacement
27.43 cu-in
Compression ratio
Intake: 0.006 ± 0.001 in
Valve clearance (cold)
Exhaust: 0.011 ± 0.001 in
Engine oil capacity
after draining
0.61 US qt
after draining and oil
filter change
0.66 US qt
2
)
after disassembly
0.81 US qt
Transmission oil capacity
after draining
0.68 US qt
after disassembly
0.76 US qt
Throttle body
Identification number
First idle speed
2,000 ± 100 rpm
Cooling system
2
)
Cooling capacity
2
)
after draining
0.99 US qt
2
)
after disassembly
1.08 US qt
2
)
3
Metric
Item
Drive train
Clutch type
Transmission
Primary reduction
Gear ratio I
449.7 cm
3
Gear ratio II
12.5 : 1
Gear ratio III
Gear ratio IV
(0.16 ± 0.03 mm)
Gear ratio V
(0.28 ± 0.03 mm)
Final reduction
Gear shift pattern
0.58 ℓ
Electrical
0.62 ℓ
Ignition
0.77 ℓ
Starting system
Spark plug :
0.64 ℓ
Standard
0.72 ℓ
For extended high
speed riding
GQ27A
Spark plug gap
0.94 ℓ
1.02 ℓ
Specifications
English
Metric
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
SILMAR9A-9S
NGK
SILMAR10A-9S
0.031 – 0.035 in
(0.8 – 0.9 mm)
151
Technical Information
- Quick Links:
- Engine Oil
- Transmission Oil
- Valve Clearance
- Suspension
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