Honda CB 1100 2017 Owner's Manual page 60

Maintenance Fundamentals
#
Inspecting Tread Depth
Inspect the tread wear indicators. If they
become visible, replace the tires immediately.
For safe riding, you should replace the tires
when the minimum tread depth is reached.
Wear indicator
location mark
58
WARNING
3
Riding on tires that are excessively worn
or improperly inflated can cause a crash
in which you can be seriously hurt or
killed.
Follow all instructions in this owner's
manual regarding tire inflation and
maintenance.