Honda CRF230F 2017 Owner's Manual page 105

26
Inspection
Whenever you check the tyre pressures, you should
also examine the tyre treads and sidewalls for wear,
damage, and foreign objects:
Look for:
Bumps or bulges in the side of the tyre or the tread.

Replace the tyre if you find any bumps or bulges.
Cuts, splits or cracks in the tyre. Replace the tyre if

you can see fabric or cord.
Excessive tread wear.

Also, if you hit a pothole or hard object, pull to the side
of the road as soon as you safely can and carefully
inspect the tyres for damage.
Tread Wear
Replace tyres before tread (1) depth at the center of
the tyre reaches the following limit:
Minimum tread depth
Front
Rear
(1)
CRF230F
3.0 mm (0.12 in)
3.0 mm (0.12 in)
(1) Tread depth