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Optional Parts List
These parts and tools may be ordered from your
authorized dealer.
FRAME
Remarks
Driven sprocket
< >: Drive chain links
CRF450RX: 50 Teeth, Aluminium
Standard
CRF450R: 49 Teeth, Aluminium
<114>
Optional
CRF450RX: 49 Teeth, Aluminium
CRF450R: 48 Teeth, Aluminium
CRF450RX: 51 Teeth, Aluminium
CRF450R: 50 Teeth, Aluminium
Drive chain
CRF450RX: RK520EXU/120LJFZ
size/link
CRF450R: RK520TXZ/120RJ
Rear brake pads
Standard
Characteristics focusing on
braking force and wear resistance.
Optional
Characteristics that emphasize
controllability.
Rear brake disc
To extend the life of brake pads in
cover and bolts
muddy conditions.
TOOLS
Remarks
Pin spanner A
To adjust spring preload.
(two spanners required)
Workstand
For maintenance
Air gauge
For checking tyre air pressure
FRAME
Remarks
Fork spring
CRF450RX: 4.8 N/mm (27.4 lbf/in)
Standard
1 scribe mark or
(Medium)
no mark
(factory products)
CRF450R: 5.0 N/mm (28.6 Ibf/in)
2 scribe marks or
no mark
(factory products)
Optional
Soft
CRF450RX: 4.6 N/mm (26.3 lbf/in)
1 scribe mark
CRF450R: 4.8 N/mm (27.4 lbf/in)
1 scribe mark
Stiff
CRF450RX: 5.0 N/mm (28.6 lbf/in)
2 scribe marks
CRF450R: 5.2 N/mm (29.7 lbf/in)
3 scribe marks
Optional Parts List
FRAME
Remarks
Shock spring
CRF450RX: 52 N/mm (296.9 lbf/in)
CRF450R: 56 N/mm (319.8 lbf/in)
Standard
CRF450RX:
(Medium)
Red paint or
no mark
(factory products)
CRF450R:
Blue paint or
no mark
(factory products)
Optional
Soft
CRF450RX: 50 N/mm (285.5 lbf/in)
CRF450R: 54 N/mm (308.3 lbf/in)
CRF450RX:
Pink paint
CRF450R:
White paint
Stiff
CRF450RX: 54 N/mm (308.3 lbf/in)
CRF450R: 58 N/mm (331.2 lbf/in)
CRF450RX:
White paint
CRF450R:
Yellow paint
The standard fork spring and shock spring
mounted on the motorcycle when it leaves the
factory are not marked. Before replacing the
springs, be sure to mark them so they can be
distinguished other optional springs.
Technical Information
185
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