Specifications - Honda CRF450X 2020 Owner's Manual & Competition Handbook

Specifications

Item English
Dimension
Overall length 86.3 in
Overall width 32.2 in
Overall height 50.3 in
Wheelbase 58.7 in
Seat height 37.9 in
Footpeg height 16.4 in
Ground clearance 13.1 in
Frame
Type Twin tube
Telescopic fork,
F. suspension travel 10.55 in (268 mm)
stroke 12.01 in (305 mm)
Pro-link,
R. suspension
travel 11.81 in (300 mm)
80/100-21 51M
Tire size, front
DUNLOP
110/100-18 64M
Tire size, rear
DUNLOP
Tire type bias-ply, tube
Tire pressure, front
22 psi (150 kPa, 1.50 kgf/cm
(cold)
Tire pressure, rear
22 psi (150 kPa, 1.50 kgf/cm
(cold)
Single disc brake
F. brake, swept area
56.0 in
R. brake, swept Single disc brake
area 60.5 in
unleaded gasoline, pump octane
Fuel
number of 91 or higher
Fuel tank capacity 2.01 US gal
Caster angle
Trail length 5.6 in
Fork oil capacity
12.2 US oz
(except damper)
Fork oil capacity
8.2 US oz
(damper)
Metric Item
Engine
2,191 mm Type
818 mm Cylinder
arrangement
1,278 mm
Bore and stroke
1,491 mm
Displacement
963 mm
Compression ratio
417 mm
333 mm
Valve clearance
(cold)
Engine oil capacity
after draining
after draining and
oil filter change
after
disassembly
Throttle body
MX52F
Identification
number
MX52
Idle speed
Cooling system
2 )
Cooling capacity
after draining
2 )
after
disassembly
2 (361.0 cm 2 )
2 2
(390.3 cm )
7.6 ℓ
27°36'
143 mm
361 cm 3
243 cm 3
English Metric
Liquid cooled, 4-stroke
Single 10° inclined
from vertical
3.78 x 2.44 in 96.0 x 62.1mm
27.4 cu-in 449 cm 3
12.0 : 1
Intake: 0.004 ± 0.001 in
(0.11 ± 0.03 mm)
Exhaust:0.011 ± 0.001 in
(0.28 ± 0.03 mm)
1.16 US qt 1.10 ℓ
1.22 US qt 1.15 ℓ
1.53 US qt 1.45 ℓ
GQ2HA
1,800 ± 100 rpm
1.20 US qt 1.14 ℓ
1.31 US qt 1.24 ℓ

Specifications

Item English
Drive train
Clutch type Wet, multi-plate type
Transmission 6-speed, constant mesh
Primary reduction
Gear ratio I
Gear ratio II
Gear ratio III
Gear ratio IV
Gear ratio V
Gear ratio VI
Final reduction
Left foot-operated return
Gear shift pattern
system 1-N-2-3-4-5-6
Electrical
HY93-C lithium-ion (li-ion)
Battery
12V-4.5 Ah (20HR)
Ignition
Starting system
Spark plug NGK
Standard SILMAR9A-9S
NGK
For extended high
speed riding
SILMAR10A-9S
0.031 – 0.035 in
Spark plug gap
(0.8 – 0.9 mm)
Lights
headlight 12 V 35 W
taillight
Fuse
Main fuse
Other fuse
Technical Information
Metric
2.357
2.357
1.705
1.300
1.090
0.916
0.793
3.923
ECM
Electric
LED
20 A
10 A
169