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Honda CRF450RL 2021 Owner's Manual & Off-Road Handbook page 118

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Setting Information
REAR SUSPENSION SETTING
Adjustments for type of track
Hard-surfaced
Begin with the standard settings.
track
If the suspension is too stiff/soft, adjust according to the chart below.
Mud track
Adjust to a stiffer position because mud build-up increases your CRF's weight.
Example:
• Depending on the feeling in the test ride, gradually change the setting in the direction of adjustment "1." corresponding to the
symptom.
If you make the too much change amount at once, another symptom will occur, making it difficult to find the optimal setting.
– Low speed compression adjuster: Adjust one click at a time.
– High speed compression adjuster: Adjust each 1/12 turn at a time.
– Rebound adjuster: Adjust one click at a time.
• If the change in feeling is small (improvement is not enough) even if the adjustment of "1." is repeatedly executed, adjust "2.".
• After adjusting "1", if there is another symptom, adjust "1" of that item.
Symptom
Suspension
feels stiff on
small bumps
Suspension
Stiff
feels stiff on
suspension
large bumps
Entire travel
too stiff
Entire travel
too soft
Soft
Rear end
suspension
sways
Suspension
bottoms at
landing after
jumping
Suspension
bottoms af-
Suspension
ter landing
bottoms
Suspension
bottoms
after end of
continuous
bumps
3-10
– Adjust the compression and rebound damping adjusters to stiffer settings.
Action
1.
Test softer low speed compression
adjustment.
2.
If it still feels stiff, further test softer low and
high speed compression adjustments
simultaneously.
1.
Test softer high speed compression
adjustment.
2.
If it still feels stiff, further test softer low and
high speed compression adjustments
simultaneously.
1.
Test softer high and low speed
compression adjustments and rebound
adjustment simultaneously.
1.
Test stiffer high and low speed
compression adjustments simultaneously.
1.
Test stiffer high and low speed
compression adjustments and rebound
adjustment to stiffer settings
simultaneously.
1.
Test stiffer high speed compression
adjustment.
2.
If it still bottoms, test stiffer high and low
speed compression adjustments.
1.
Test stiffer low speed compression
adjustment.
2.
If it still bottoms, test stiffer high and low
speed compression adjustments.
1.
Test softer rebound damping adjustment.
2.
If it still bottoms, test stiffer high and low
speed compression adjustments and
softer rebound damping adjustment.
Compression
adjuster
Rebound
adjuster
Low
High
speed
speed
-
-
-
-
-
-
-
-
-
-
-
-
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Crf450l