Honda CRF125F 2022 Owner's Manual page 87

4. Check the chain slider (2) for wear.
If the depth (3) of the chain slider reaches
the service limit, have your dealer replace
the chain slider.
Service Limit:
3 mm (0.1 in)
(3)
(3)
(2) Chain slider
(3) Depth
(3)
(2)
5. Measure a section of the drive chain to
determine whether the chain is worn
beyond its service limit. Remove the drive
chain and measure the distance between a
span of pins from pin centre to pin centre. If
the distance exceeds the service limit, the
chain is worn out and should be replaced.
New Chain:
508 mm (20.0 in)
Service Limit:
518 mm (20.4 in)
Measure a span of : 41 pins.
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