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Optional Parts List
Technical Information 179
Optional Parts List
These parts and tools may be ordered from your
authorized dealer.
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.
FRAME Remarks
Driven sprocket < >: Drive chain links
CRF450RX: 50 Teeth, Aluminum
CRF450R: 49 Teeth, Aluminum
<114>
Standard
Optional
CRF450RX: 49 Teeth, Aluminum
CRF450R: 48 Teeth, Aluminum
CRF450RX: 51 Teeth, Aluminum
CRF450R: 50 Teeth, Aluminum
Drive chain
size/link
CRF450RX: RK520EXU/120LJFZ
CRF450R: RK520TXZ/120RJ
Handlebar
lower holder
Standard 0.1 in (3 mm) offset
Optional no offset
TOOLS Remarks
Pin spanner A To adjust spring preload.
(two spanners required)
Workstand For maintenance
Air gauge For checking tire air pressure
FRAME Remarks
Fork spring
CRF450RX:
27.4 lbf/in (4.8 N/mm)
Standard
(Medium)
CRF450R: 28.6 Ibf/in (5.0 N/mm)
Optional
Soft
CRF450RX: 26.3 lbf/in (4.6 N/mm)
CRF450R: 27.4 Ibf/in (4.8 N/mm)
Stiff
CRF450RX: 28.6 lbf/in (5.0 N/mm)
CRF450R:
29.7 Ibf/in (5.2 N/mm)
No mark
(factory products)
2 scribe marks
(factory products)
1 scribe mark
No mark
2 scribe marks
3 scribe marks
FRAME Remarks
Shock spring C
RF450RX: 296.9 lbf/in (52 N/mm)
CRF450R: 319.8 lbf/in (56 N/mm)
Standard
(Medium)
Optional
Soft
CRF450RX: 285.5 lbf/in (50 N/mm)
CRF450R: 308.3 lbf/in (54 N/mm)
Stiff
CRF450RX: 308.3 lbf/in (54 N/mm)
CRF450R: 331.2 lbf/in (58 N/mm)
CRF450RX:
No mark
(factory products)
Red paint
(aftermarket parts)
CRF450R:
No mark
(factory products)
Blue paint
(aftermarket parts)
CRF450RX:
Pink paint
CRF450R:
White paint
CRF450RX:
White paint
CRF450R:
Yellow paint
31MKE610_RX.book 179 ページ ２０１７年４月１４日 金曜日 午後２時３７分
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