Contents: Wear of the central part of the tread ⇓ Wear of both side parts of the tread ⇓ Tearing out pieces of a tire ⇓ One side of the tread is worn more…⇓ Flat spots on the tread ⇓ The lug or protrusion on the tire ⇓ Unreliable patch attachment ⇓ Uneven tire wear ⇓ There is no tread pattern ⇓
Wear of the central part of the tread

Very high tire pressure

Wear of the central part of the tread down to the cord due to high tire pressure
Wear of both side parts of the tread

Low tire pressure. Bulge on tire bead. Rapid wear.
Tearing out pieces of a tire

Tearing out a poorly installed patch due to centrifugal force
One side of the tread is worn more than the other

Incorrect front wheel camber angle
Flat spots on the tread

Braking with wheel locking
The lug or protrusion on the tire

Wheel alignment is broken
Unreliable patch attachment

Several patches have been installed in one place
Uneven tire wear

Wheel balance is disturbed, steering gear, suspension or bearing malfunctions
There is no tread pattern

(The article is borrowed from the website: HyundaiBook)
The tread is worn below the permissible limit
