User Manual - Page 186

For CRF450X 2020.

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Optional Parts List
178 Technical Information
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
51 Teeth, Aluminum
<114>
Standard
Drive chain
size/link
RK520EXU/120LJFZ
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 28.6 Ibf/in (5.0 N/mm)
Standard
(Medium)
Optional
Soft 27.4 Ibf/in (4.8 N/mm)
Stiff 29.7 Ibf/in (5.2 N/mm)
2 scribe marks or
no mark
(factory products)
No mark
3 scribe marks
FRAME Remarks
Shock spring
296.9 lbf/in (52 N/mm)
Standard
(Medium)
Optional
Soft
285.5 lbf/in (50 N/mm)
Stiff
308.3 lbf/in (54 N/mm)
No mark
(factory products)
Red paint
(aftermarket parts)
Pink paint
White paint
31MKE710.book178ページ2019年3月11日 月曜日 午前10時47
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