Honda CB500XA 2017 Owner's Manual page 79

# Checking the Drive Chain Wear
Check the chain wear label when adjusting the
drive chain. If the index mark on the washer enters
the red zone on the label after the chain has been
adjusted to the proper slack, the chain is
excessively worn and must be replaced.
Chain: DID520V0
If necessary have the drive chain replaced by your
dealer.
Red zone
Index mark
Drive Chain Checking the Drive Chain Slider
u
Checking the Drive Chain Slider
Check the condition of the drive chain slider.
The drive chain slider will need to be
replaced if the chain slider is worn to the
wear limit line.
If necessary have the drive chain slider
replaced by your dealer.
Wear limit line
Drive chain slider
75